Timeline / Data.gov — Environment Datasets

changed Source changed

A new raw object was archived. Both versions are preserved. 4868 line(s) added, 4629 line(s) removed.

Evidence

What changed derived

This diff is not evidence. It was produced by civic-memory.diff_engine 1.1.0 at 2026-09-17T00:30:14+00:00 by normalizing the two archived objects above. The objects are authoritative; this reading of them can be regenerated or deleted without loss. 4868 line(s) added, 4629 line(s) removed.

--- previous
+++ current
@@ -1,13 +1,13 @@
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+ "after": "WzE3ODk2MDM1MDQ1MDEsOC4wNDM3NiwyLCJkNzA3N2Y0Yy02Nzc4LTQxYWUtOGJiMS05ODM2ODUxNmE0MGMiXQ==",
  "results": [
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- "_score": 7.5327926,
+ "_score": 7.4861097,
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- 7.5327926,
- 2,
- "ca01b376-3dfd-4a64-a0c0-1c29658801fa"
+ 1789605013887,
+ 7.4861097,
+ 4,
+ "803e5b9e-97bf-40ff-8a2f-ea0a0ba2fedd"
  ],
  "dcat": {
  "accessLevel": "public",
@@ -19,11 +19,11 @@
  "fn": "Mackenzie Keith",
  "hasEmail": "mailto:mkeith@usgs.gov"
  },
- "description": "The Coquille River system is an unregulated system that encompasses 2,745 square kilometers of southwestern \nOregon and flows into the Pacific Ocean near the town of Bandon, Oregon. Beginning in the Rogue River-Siskiyou National Forest, \nthe South Fork Coquille River gains the Middle Fork Coquille River (drainage area 798 square kilometers) and shortly thereafter the \nNorth Fork Coquille River (749 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey \ncompleted a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream \ngravel extraction along the the South Fork Coquille River from river kilometer (RKM) 115.4 near its confluence with Upper Land Creek \nto RKM 58.5 at its confluence with the North Fork Coquille River, the mainstem Coquille River from RKM 58.5 at the confluence of the \nSouth and North Forks of the Coquille River to its mouth, the Middle Fork Coquille River from RKM 15.4 to its confluence with the \nSouth Fork Coquille River, and the North Fork Coquille River from RKM 14.6 to its confluence with the South Fork Coquille River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Coquille River basin \nfrom different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were \ndeveloped for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically \ninundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel \nbars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 \nand 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the \nrectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.",
+ "description": "The Tillamook Bay subbasins and Nehalem River basins encompass 1,369 and 2,207 respective square \nkilometers of northwestern Oregon and drain to the Pacific Ocean. The Tillamook, Trask, Wilson, Kilchis, \nand Miami Rivers flow into Tillamook Bay near the towns of Tillamook and Garibaldi. The Wilson and \nTrask River basins cover the largest areas (500 and 451 square kilometers, respectively) whereas the \nTillamook and Kilchis Rivers encompass similar sized areas (156 and 169 square kilometers, respectively) \nand the Miami River the smallest area (94 square kilometers). In cooperation with the U.S. Army Corps of \nEngineers, the U.S. Geological Survey completed a reconnaissance-level assessment of channel condition \nand bed-material transport relevant to the permitting of in-stream gravel extraction along the the major \nalluvial portions of six river systems, including the lowermost 14.1 km of the Tillamook River, 16.3 km \nof the Trask River, 15.2 km of the Wilson River, 7.8 km of the Kilchis River, 11.6 km of the Miami River, \nand 31.4 km of the Nehalem River. To support these analyses, digital channel maps were produced to \ndepict channel and floodplain conditions in the Tillamook Bay sub-basins and Nehalem River basin from \ndifferent time periods. GIS layers defining the wetted channel and bar features and channel centerline \nin the study area were developed for four time periods: 1939, 1967, 2005, and 2009. For this project, \nthe active channel was defined as area typically inundated during annual high flows, and includes the \nlow-flow channel as well as side channels, islands, and channel-flanking gravel bars. The wetted channel \nand bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from \n1939 and 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph \nset for more information on the rectification process and resolution of each dataset). Digital orthophotographs \nfrom 2005 and 2009 are publicly available.",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?ofr2012_1064_Coquille_River_Centerline_1939",
+ "accessURL": "https://doi.org/10.5066/P9148W35",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -32,22 +32,25 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.d873726e-4563-4c42-91dc-33cde3d73195.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.68c4a0db-a08d-4c65-a331-5216591111f9.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
  }
  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_d873726e-4563-4c42-91dc-33cde3d73195",
- "keyword": [
- "Coos County",
- "Coquille River",
- "Curry County",
- "Middle Fork Coquille River",
- "North Fork Coquille River",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68c4a0db-a08d-4c65-a331-5216591111f9",
+ "keyword": [
+ "Kilchis River",
+ "Miami River",
+ "Nehalem Bay",
+ "Nehalem River",
  "Oregon Coast Range",
- "South Fork Coquille River",
- "USGS:d873726e-4563-4c42-91dc-33cde3d73195",
+ "Tillamook Bay",
+ "Tillamook County",
+ "Tillamook River",
+ "Trask River",
+ "USGS:68c4a0db-a08d-4c65-a331-5216591111f9",
+ "Wilson River",
  "channel stability",
  "environment",
  "fluvial geomorphology",
@@ -61,31 +64,34 @@
  "@type": "org:Organization",
  "name": "U.S. Geological Survey"
  },
- "spatial": "-124.432653, 42.872866, -123.992202, 43.203918",
- "theme": [
- "geospatial"
- ],
- "title": "Channel centerline for the Coquille River, Oregon in 1939"
- },
- "description": "The Coquille River system is an unregulated system that encompasses 2,745 square kilometers of southwestern \nOregon and flows into the Pacific Ocean near the town of Bandon, Oregon. Beginning in the Rogue River-Siskiyou National Forest, \nthe South Fork Coquille River gains the Middle Fork Coquille River (drainage area 798 square kilometers) and shortly thereafter the \nNorth Fork Coquille River (749 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey \ncompleted a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream \ngravel extraction along the the South Fork Coquille River from river kilometer (RKM) 115.4 near its confluence with Upper Land Creek \nto RKM 58.5 at its confluence with the North Fork Coquille River, the mainstem Coquille River from RKM 58.5 at the confluence of the \nSouth and North Forks of the Coquille River to its mouth, the Middle Fork Coquille River from RKM 15.4 to its confluence with the \nSouth Fork Coquille River, and the North Fork Coquille River from RKM 14.6 to its confluence with the South Fork Coquille River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Coquille River basin \nfrom different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were \ndeveloped for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically \ninundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel \nbars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 \nand 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the \nrectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.",
+ "spatial": "-123.893381, 45.395248, -123.723959, 45.620873",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Channel centerline for the Tillamook, Trask, Wilson, Kilchis, and Miami Rivers, Oregon in 1967"
+ },
+ "description": "The Tillamook Bay subbasins and Nehalem River basins encompass 1,369 and 2,207 respective square \nkilometers of northwestern Oregon and drain to the Pacific Ocean. The Tillamook, Trask, Wilson, Kilchis, \nand Miami Rivers flow into Tillamook Bay near the towns of Tillamook and Garibaldi. The Wilson and \nTrask River basins cover the largest areas (500 and 451 square kilometers, respectively) whereas the \nTillamook and Kilchis Rivers encompass similar sized areas (156 and 169 square kilometers, respectively) \nand the Miami River the smallest area (94 square kilometers). In cooperation with the U.S. Army Corps of \nEngineers, the U.S. Geological Survey completed a reconnaissance-level assessment of channel condition \nand bed-material transport relevant to the permitting of in-stream gravel extraction along the the major \nalluvial portions of six river systems, including the lowermost 14.1 km of the Tillamook River, 16.3 km \nof the Trask River, 15.2 km of the Wilson River, 7.8 km of the Kilchis River, 11.6 km of the Miami River, \nand 31.4 km of the Nehalem River. To support these analyses, digital channel maps were produced to \ndepict channel and floodplain conditions in the Tillamook Bay sub-basins and Nehalem River basin from \ndifferent time periods. GIS layers defining the wetted channel and bar features and channel centerline \nin the study area were developed for four time periods: 1939, 1967, 2005, and 2009. For this project, \nthe active channel was defined as area typically inundated during annual high flows, and includes the \nlow-flow channel as well as side channels, islands, and channel-flanking gravel bars. The wetted channel \nand bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from \n1939 and 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph \nset for more information on the rectification process and resolution of each dataset). Digital orthophotographs \nfrom 2005 and 2009 are publicly available.",
  "distribution_titles": [
  "Digital Data",
  "Original Metadata"
  ],
- "harvest_record": "https://catalog.data.gov/harvest_record/4827d739-f51c-4d7d-bffa-18a6c4c46500",
- "harvest_record_raw": "https://catalog.data.gov/harvest_record/4827d739-f51c-4d7d-bffa-18a6c4c46500/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/d649e2d2-d0b9-49b3-b0a2-2b38410ebe92",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/d649e2d2-d0b9-49b3-b0a2-2b38410ebe92/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_d873726e-4563-4c42-91dc-33cde3d73195",
- "keyword": [
- "Coos County",
- "Coquille River",
- "Curry County",
- "Middle Fork Coquille River",
- "North Fork Coquille River",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68c4a0db-a08d-4c65-a331-5216591111f9",
+ "keyword": [
+ "Kilchis River",
+ "Miami River",
+ "Nehalem Bay",
+ "Nehalem River",
  "Oregon Coast Range",
- "South Fork Coquille River",
- "USGS:d873726e-4563-4c42-91dc-33cde3d73195",
+ "Tillamook Bay",
+ "Tillamook County",
+ "Tillamook River",
+ "Trask River",
+ "USGS:68c4a0db-a08d-4c65-a331-5216591111f9",
+ "Wilson River",
  "channel stability",
  "environment",
  "fluvial geomorphology",
@@ -94,7 +100,7 @@
  "inlandWaters",
  "sediment transport"
  ],
- "last_harvested_date": "2026-09-16T00:46:22.697579",
+ "last_harvested_date": "2026-09-17T00:30:13.887912",
  "organization": {
  "aliases": [
  "dept"
@@ -109,35 +115,35 @@
  "slug": "doi"
  },
  "parent_identifier": null,
- "popularity": 2,
+ "popularity": 4,
  "publisher": "U.S. Geological Survey",
- "slug": "channel-centerline-for-the-coquille-river-oregon-in-1939",
+ "slug": "channel-centerline-for-the-tillamook-trask-wilson-kilchis-and-miami-rivers-oregon-in-1967",
  "spatial_centroid": {
- "lat": 43.0052868,
- "lon": -124.25647260000001
+ "lat": 45.485498,
+ "lon": -123.8256122
  },
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- 42.872866
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- 43.203918
- ],
- [
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- ],
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+ -123.893381,
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+ ],
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+ 45.620873
+ ],
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+ ],
+ [
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+ ],
+ [
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+ 45.395248
  ]
  ]
  ],
@@ -146,16 +152,16 @@
  "theme": [
  "geospatial"
  ],
- "title": "Channel centerline for the Coquille River, Oregon in 1939",
+ "title": "Channel centerline for the Tillamook, Trask, Wilson, Kilchis, and Miami Rivers, Oregon in 1967",
  "type": "dataset"
  },
  {
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+ "_score": 9.289085,
  "_sort": [
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+ "64ce3bcf-6056-4d31-acb2-bb1413385086"
  ],
  "dcat": {
  "accessLevel": "public",
@@ -164,14 +170,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Daniel T. Snyder",
- "hasEmail": "mailto:dtsnyder@usgs.gov"
- },
- "description": "This subset of a Landsat-5 image shows part of the upper Klamath Basin. \nThe original images were obtained from the U.S. Geological Survey Earth \nResources Observation and Science Center (EROS). EROS is responsible \nfor archive management and distribution of Landsat data products. The \nLandsat-5 satellite is part of an ongoing mission to provide quality remote \nsensing data in support of research and applications activities. The launch \nof Landsat-5 on March 1, 1984 marks the addition of the fifth satellite to the \nLandsat series. The Landsat-5 satellite carries the Thematic Mapper (TM) \nsensor. More information on the Landsat program can be found online at \nhttp://landsat.usgs.gov/.",
+ "fn": "Colorado District Chief",
+ "hasEmail": "mailto:dc_co@usgs.gov"
+ },
+ "description": "This digital geospatial data set consists of geohydrologic\nunit boundaries shown in the report \"Structure, outcrop, and\nsubcrop of the bedrock aquifers along the western margin of\nthe Denver Basin, Colorado\" (Robson and others, 1998).",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?erosl1t_07282004_p44r31_l5_usgs_NAD83",
+ "accessURL": "https://doi.org/10.5066/P9L5J6MG",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -180,61 +186,59 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.43a3dee6-28f1-4958-ad6f-a70146ae6709.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.68c1afa8-92aa-42ca-9d47-3ef285e75188.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
  }
  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_43a3dee6-28f1-4958-ad6f-a70146ae6709",
- "keyword": [
- "Klamath Basin Restoration Agreement",
- "Landsat",
- "Oregon",
- "Sprague River Basin",
- "USGS:43a3dee6-28f1-4958-ad6f-a70146ae6709",
- "Upper Klamath Basin",
- "Williamson River Basin",
- "Wood River Basin",
- "environment",
- "geoscientificInformation",
- "inlandWaters"
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68c1afa8-92aa-42ca-9d47-3ef285e75188",
+ "keyword": [
+ "Denver, Colorado",
+ "Front Range, Colorado",
+ "USGS:68c1afa8-92aa-42ca-9d47-3ef285e75188",
+ "aquifer",
+ "contact",
+ "environment",
+ "geology",
+ "geoscientificInformation",
+ "inlandWaters",
+ "subcrop"
  ],
  "modified": "2020-11-17T00:00:00Z",
  "publisher": {
  "@type": "org:Organization",
  "name": "U.S. Geological Survey"
  },
- "spatial": "-123.382600, 41.991760, -120.601579, 43.492919",
- "theme": [
- "geospatial"
- ],
- "title": "Upper Klamath Basin Landsat Image for July 28, 2004: Path 44 Row 31"
- },
- "description": "This subset of a Landsat-5 image shows part of the upper Klamath Basin. \nThe original images were obtained from the U.S. Geological Survey Earth \nResources Observation and Science Center (EROS). EROS is responsible \nfor archive management and distribution of Landsat data products. The \nLandsat-5 satellite is part of an ongoing mission to provide quality remote \nsensing data in support of research and applications activities. The launch \nof Landsat-5 on March 1, 1984 marks the addition of the fifth satellite to the \nLandsat series. The Landsat-5 satellite carries the Thematic Mapper (TM) \nsensor. More information on the Landsat program can be found online at \nhttp://landsat.usgs.gov/.",
+ "spatial": "-105.25683629, 39.28197938, -104.58906173, 40.88668006",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Geohydrologic unit boundaries along the Colorado Front Range"
+ },
+ "description": "This digital geospatial data set consists of geohydrologic\nunit boundaries shown in the report \"Structure, outcrop, and\nsubcrop of the bedrock aquifers along the western margin of\nthe Denver Basin, Colorado\" (Robson and others, 1998).",
  "distribution_titles": [
  "Digital Data",
  "Original Metadata"
  ],
- "harvest_record": "https://catalog.data.gov/harvest_record/8382d7da-4c7b-40ad-ae8c-d6fbdae08c3b",
- "harvest_record_raw": "https://catalog.data.gov/harvest_record/8382d7da-4c7b-40ad-ae8c-d6fbdae08c3b/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/9e94c0c9-06f3-40a1-a4c5-42931e6f5d87",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/9e94c0c9-06f3-40a1-a4c5-42931e6f5d87/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_43a3dee6-28f1-4958-ad6f-a70146ae6709",
- "keyword": [
- "Klamath Basin Restoration Agreement",
- "Landsat",
- "Oregon",
- "Sprague River Basin",
- "USGS:43a3dee6-28f1-4958-ad6f-a70146ae6709",
- "Upper Klamath Basin",
- "Williamson River Basin",
- "Wood River Basin",
- "environment",
- "geoscientificInformation",
- "inlandWaters"
- ],
- "last_harvested_date": "2026-09-16T00:46:14.306230",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68c1afa8-92aa-42ca-9d47-3ef285e75188",
+ "keyword": [
+ "Denver, Colorado",
+ "Front Range, Colorado",
+ "USGS:68c1afa8-92aa-42ca-9d47-3ef285e75188",
+ "aquifer",
+ "contact",
+ "environment",
+ "geology",
+ "geoscientificInformation",
+ "inlandWaters",
+ "subcrop"
+ ],
+ "last_harvested_date": "2026-09-17T00:29:53.534281",
  "organization": {
  "aliases": [
  "dept"
@@ -251,33 +255,33 @@
  "parent_identifier": null,
  "popularity": 1,
  "publisher": "U.S. Geological Survey",
- "slug": "upper-klamath-basin-landsat-image-for-july-28-2004-path-44-row-31",
+ "slug": "geohydrologic-unit-boundaries-along-the-colorado-front-range",
  "spatial_centroid": {
- "lat": 42.5922236,
- "lon": -122.2701916
+ "lat": 39.923859652000004,
+ "lon": -104.98972646600001
  },
  "spatial_shape": {
  "coordinates": [
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+ -105.25683629,
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+ [
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  ]
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  ],
@@ -286,16 +290,16 @@
  "theme": [
  "geospatial"
  ],
- "title": "Upper Klamath Basin Landsat Image for July 28, 2004: Path 44 Row 31",
+ "title": "Geohydrologic unit boundaries along the Colorado Front Range",
  "type": "dataset"
  },
  {
- "_score": 5.785529,
+ "_score": 7.4002237,
  "_sort": [
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+ "d54f5359-a6d4-43e5-b526-b61c064d5c2b"
  ],
  "dcat": {
  "accessLevel": "public",
@@ -304,14 +308,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Michael E. Wieczorek",
- "hasEmail": "mailto:mewieczo@usgs.gov"
- },
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+ "description": "The Coquille River system is an unregulated system that encompasses 2,745 square kilometers of southwestern \nOregon and flows into the Pacific Ocean near the town of Bandon, Oregon. Beginning in the Rogue River-Siskiyou National Forest, \nthe South Fork Coquille River gains the Middle Fork Coquille River (drainage area 798 square kilometers) and shortly thereafter the \nNorth Fork Coquille River (749 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey \ncompleted a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream \ngravel extraction along the the South Fork Coquille River from river kilometer (RKM) 115.4 near its confluence with Upper Land Creek \nto RKM 58.5 at its confluence with the North Fork Coquille River, the mainstem Coquille River from RKM 58.5 at the confluence of the \nSouth and North Forks of the Coquille River to its mouth, the Middle Fork Coquille River from RKM 15.4 to its confluence with the \nSouth Fork Coquille River, and the North Fork Coquille River from RKM 14.6 to its confluence with the South Fork Coquille River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Coquille River basin \nfrom different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were \ndeveloped for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically \ninundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel \nbars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 \nand 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the \nrectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.",
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+ "description": "This data set represents the mean percent impervious surface from the Imperviousness Layer of the \nNational Land Cover Dataset 2001 (LaMotte and Wieczorek, 2010), compiled for every catchment of \nNHDPlus for the conterminous United States. The source data set represents imperviousness for the \nconterminous United States for 2001. The Imperviousness Layer of the National Land Cover Data Set \nfor 2001 was produced through a cooperative project conducted by the Multi-Resolution Land \nCharacteristics (MRLC) Consortium. The MRLC Consortium is a partnership of Federal agencies \n(http://www.mrlc.gov), consisting of the U.S. Geological Survey (USGS), the National Oceanic and \nAtmospheric Administration (NOAA), the U.S. Environmental Protection Agency (USEPA), the U.S. \nDepartment of Agriculture (USDA), the U.S. Forest Service (USFS), the National Park Service (NPS), \nthe U.S. Fish and Wildlife Service (USFWS), the Bureau of Land Management (BLM), and the USDA \nNatural Resources Conservation Service (NRCS).\n\t\t\nThe NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that incorporates \nmany of the best features of the National Hydrography Dataset (NHD) and the National Elevation Dataset \n(NED). The NHDPlus includes a stream network (based on the 1:100,00-scale NHD), improved networking, \nnaming, and value-added attributes (VAAs). NHDPlus also includes elevation-derived catchments \n(drainage areas) produced using a drainage enforcement technique first widely used in New England, \nand thus referred to as \"the New England Method.\" This technique involves \"burning in\" the 1:100,000-scale \nNHD and when available building \"walls\" using the National Watershed Boundary Dataset (WBD). The \nresulting modified digital elevation model (HydroDEM) is used to produce hydrologic derivatives that agree \nwith the NHD and WBD. Over the past two years, an interdisciplinary team from the U.S. Geological Survey \n(USGS), and the U.S. Environmental Protection Agency (USEPA), and contractors, found that this method \nproduces the best quality NHD catchments using an automated process (USEPA, 2007). The NHDPlus \ndataset is organized by 18 Production Units that cover the conterminous United States.\n\t\t\nThe NHDPlus version 1.1 data are grouped by the U.S. Geologic Survey's Major River Basins (MRBs, Crawford \nand others, 2006). MRB1, covering the New England and Mid-Atlantic River basins, contains NHDPlus \nProduction Units 1 and 2. MRB2, covering the South Atlantic-Gulf and Tennessee River basins, contains \nNHDPlus Production Units 3 and 6. MRB3, covering the Great Lakes, Ohio, Upper Mississippi, and \nSouris-Red-Rainy River basins, contains NHDPlus Production Units 4, 5, 7 and 9. MRB4, covering the \nMissouri River basins, contains NHDPlus Production Units 10-lower and 10-upper. MRB5, covering the \nLower Mississippi, Arkansas-White-Red, and Texas-Gulf River basins, contains NHDPlus Production \nUnits 8, 11 and 12. MRB6, covering the Rio Grande, Colorado and Great Basin River basins, contains \nNHDPlus Production Units 13, 14, 15 and 16. MRB7, covering the Pacific Northwest River basins, \ncontains NHDPlus Production Unit 17. MRB8, covering California River basins, contains NHDPlus \nProduction Unit 18.",
+ "distribution": [
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+ "format": "XML",
+ "mediaType": "text/xml",
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  "keyword": [
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  "COGB",
@@ -335,7 +1221,7 @@
  "Conterminous United States",
  "GLMR",
  "Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy",
- "Hydrologic landscape regions",
+ "Imperviousness",
  "Inlandwaters",
  "LMTG",
  "Lower Mississippi, Arkansas-White-Red, and Texas-Gulf",
@@ -361,7 +1247,7 @@
  "SAGT",
  "SPARROW",
  "South Atlantic-Gulf and Tennessee",
- "USGS:93b2f75c-33bc-4cae-b48e-41b6f85d2e39",
+ "USGS:e2d3b46b-e599-46f2-a79e-1415ac39825b",
  "environment",
  "geoscientificInformation",
  "inlandWaters"
@@ -375,18 +1261,18 @@
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- "title": "Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Hydrologic Landscape Regions"
- },
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+ "title": "Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: NLCD 2001 Imperviousness"
+ },
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/ce8518ab-c55c-4a98-bf5c-67d84f328d18/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/5b3411ab-aa8e-4247-ba9a-20669ec3ba55",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/5b3411ab-aa8e-4247-ba9a-20669ec3ba55/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_93b2f75c-33bc-4cae-b48e-41b6f85d2e39",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e2d3b46b-e599-46f2-a79e-1415ac39825b",
  "keyword": [
  "CALI",
  "COGB",
@@ -395,7 +1281,7 @@
  "Conterminous United States",
  "GLMR",
  "Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy",
- "Hydrologic landscape regions",
+ "Imperviousness",
  "Inlandwaters",
  "LMTG",
  "Lower Mississippi, Arkansas-White-Red, and Texas-Gulf",
@@ -421,12 +1307,12 @@
  "SAGT",
  "SPARROW",
  "South Atlantic-Gulf and Tennessee",
- "USGS:93b2f75c-33bc-4cae-b48e-41b6f85d2e39",
+ "USGS:e2d3b46b-e599-46f2-a79e-1415ac39825b",
  "environment",
  "geoscientificInformation",
  "inlandWaters"
  ],
- "last_harvested_date": "2026-09-16T00:46:11.962393",
+ "last_harvested_date": "2026-09-17T00:27:56.954725",
  "organization": {
  "aliases": [
  "dept"
@@ -441,9 +1327,9 @@
  "slug": "doi"
  },
  "parent_identifier": null,
- "popularity": 3,
+ "popularity": 1,
  "publisher": "U.S. Geological Survey",
- "slug": "attributes-for-nhdplus-catchments-version-1-1-for-the-conterminous-united-states-hydrologi",
+ "slug": "attributes-for-nhdplus-catchments-version-1-1-for-the-conterminous-united-states-nlcd-2001",
  "spatial_centroid": {
  "lat": 34.6090464,
  "lon": -102.8775756
@@ -478,16 +1364,16 @@
  "theme": [
  "geospatial"
  ],
- "title": "Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Hydrologic Landscape Regions",
+ "title": "Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: NLCD 2001 Imperviousness",
  "type": "dataset"
  },
  {
- "_score": 9.86459,
+ "_score": 5.769373,
  "_sort": [
- 1789519567546,
- 9.86459,
+ 1789604857509,
+ 5.769373,
  2,
- "198a74ca-f997-4894-8f2e-320386b59231"
+ "e6fc6cc4-c707-4ad9-ac75-27f1a901a5b6"
  ],
  "dcat": {
  "accessLevel": "public",
@@ -496,14 +1382,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Water Webserver Team",
- "hasEmail": "mailto:h2oteam@usgs.gov"
- },
- "description": "This data set represents the extent of the New York sandstone aquifers in New York.",
+ "fn": "Michael E. Wieczorek",
+ "hasEmail": "mailto:mewieczo@usgs.gov"
+ },
+ "description": "This data set represents the average population density, in number of people per square kilometer \nmultiplied by 10 for the year 2000, compiled for every MRB_E2RF1 catchment of selected Major \nRiver Basins (MRBs, Crawford and others, 2006). The source data set is the 2000 Population \nDensity by Block Group for the Conterminous United States (Hitt, 2003).\n\t\t\nThe MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection \nAgency's (USEPA) RF1_2 and include enhancements to support national and regional-scale \nsurface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011).\n\t\t\nData were compiled for every MRB_E2RF1 catchment for the conterminous United States covering \ncovering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the \nGreat Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the \nLower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and \nthe Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8).",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?new_york_sandstone_aquifers",
+ "accessURL": "https://doi.org/10.5066/P9453OZ7",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -512,2639 +1398,14 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e1862279-c604-4d62-ad12-4b9e2d7ee5d8.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.22d021cc-b897-4d21-8dc1-c24177b67213.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
  }
  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e1862279-c604-4d62-ad12-4b9e2d7ee5d8",
- "keyword": [
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- "aquifer",
- "aquifer extent",
- "environment",
- "geoscientificInformation",
- "groundwater",
- "inlandWaters"
- ],
- "modified": "2020-11-17T00:00:00Z",
- "publisher": {
- "@type": "org:Organization",
- "name": "U.S. Geological Survey"
- },
- "spatial": "-77.544555, 43.036718, -72.622249, 44.873542",
- "theme": [
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- ],
- "title": "New York sandstone aquifers"
- },
- "description": "This data set represents the extent of the New York sandstone aquifers in New York.",
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- "title": "New York sandstone aquifers",
- "type": "dataset"
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- "contactPoint": {
- "@type": "vcard:Contact",
- "fn": "Alan Rea",
- "hasEmail": "mailto:ahrea@usgs.gov"
- },
- "description": "This digital-map data set consists of a grid of generalized skew\ncoefficients of logarithms of annual maximum streamflow for\nOklahoma streams less than or equal to 2,510 square miles in\ndrainage area. This grid of skew coefficients is taken from figure\n11 of the Tortorelli and Bergman, 1985 report, \"Techniques for\nestimating flood peak discharges for unregulated streams and\nstreams regulated by small floodwater retarding structures in\nOklahoma,\" U.S. Geological Survey Water-Resources Investigations\nReport 84-4358. The skew coefficients were used to develop\npeak-flow regression equations in the Tortorelli, 1997 report,\n\"Techniques for estimating peak-streamflow frequency for\nunregulated streams and streams regulated by small floodwater\nretarding structures in Oklahoma,\" U.S. Geological Survey\nWater-Resources Investigations Report 97-4202. Only skew\ncoefficient values within Oklahoma are intended for use with the\nregression equations. To save disk space, the skew coefficient\nvalues have been multiplied by 100 and rounded to integers with two\nsignificant digits.",
- "distribution": [
- {
- "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?ofr97-574_ok_skew",
- "description": "Landing page for access to the data",
- "format": "XML",
- "mediaType": "application/http",
- "title": "Digital Data"
- },
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- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.78dadde4-609a-40a9-8919-8c3c3f1c2242.xml",
- "format": "XML",
- "mediaType": "text/xml",
- "title": "Original Metadata"
- }
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_78dadde4-609a-40a9-8919-8c3c3f1c2242",
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- "small watersheds",
- "storm runoff",
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- "spatial": "-102.9933, 33.4770, -93.7089, 38.0334",
- "theme": [
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- "title": "Generalized peak skew coefficients for Oklahoma, 1961-1990 base period."
- },
- "description": "This digital-map data set consists of a grid of generalized skew\ncoefficients of logarithms of annual maximum streamflow for\nOklahoma streams less than or equal to 2,510 square miles in\ndrainage area. This grid of skew coefficients is taken from figure\n11 of the Tortorelli and Bergman, 1985 report, \"Techniques for\nestimating flood peak discharges for unregulated streams and\nstreams regulated by small floodwater retarding structures in\nOklahoma,\" U.S. Geological Survey Water-Resources Investigations\nReport 84-4358. The skew coefficients were used to develop\npeak-flow regression equations in the Tortorelli, 1997 report,\n\"Techniques for estimating peak-streamflow frequency for\nunregulated streams and streams regulated by small floodwater\nretarding structures in Oklahoma,\" U.S. Geological Survey\nWater-Resources Investigations Report 97-4202. Only skew\ncoefficient values within Oklahoma are intended for use with the\nregression equations. To save disk space, the skew coefficient\nvalues have been multiplied by 100 and rounded to integers with two\nsignificant digits.",
- "distribution_titles": [
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- "Original Metadata"
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/b18292bd-06ad-406b-8018-52b980e4cb83/raw",
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_78dadde4-609a-40a9-8919-8c3c3f1c2242",
- "keyword": [
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- "frequency analysis",
- "generalized skew map",
- "geoscientificInformation",
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- "natural flow",
- "peak discharge",
- "regression analysis,",
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- "small watersheds",
- "storm runoff",
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- "ungaged watersheds"
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- "organization_type": "Federal Government",
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- "popularity": 3,
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- "lon": -99.27954
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- "type": "Polygon"
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- "theme": [
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- ],
- "title": "Generalized peak skew coefficients for Oklahoma, 1961-1990 base period.",
- "type": "dataset"
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- "contactPoint": {
- "@type": "vcard:Contact",
- "fn": "John Brakebill",
- "hasEmail": "mailto:jwbrakeb@usgs.gov"
- },
- "description": "Generalized lithology (rock type) and physiography based on\ngeologic formations were used to characterize hydrgeomorphic\nregions (HGMR) within the Chesapeake Bay watershed. These\nHGMRs were used in conjunction with existing data to assess\nthe significance of ground-water discharge as a source of\nnitrate load to nontidal streams in the Chesapeake Bay\nwatershed (Bachman and others, 1998). This work is part of\nthe U.S. Geological Survey's (USGS) Chesapeake Bay initative\nto develop an understanding and provide scientific\ninformation for the restoration of the Chesapeake Bay and\nits watershed (Phillips and Caughron, 1997).",
- "distribution": [
- {
- "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?hgmr",
- "description": "Landing page for access to the data",
- "format": "XML",
- "mediaType": "application/http",
- "title": "Digital Data"
- },
- {
- "@type": "dcat:Distribution",
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- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ef4cf6eb-b740-4a5d-bef4-867a875ff1d1.xml",
- "format": "XML",
- "mediaType": "text/xml",
- "title": "Original Metadata"
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ef4cf6eb-b740-4a5d-bef4-867a875ff1d1",
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- "theme": [
- "geospatial"
- ],
- "title": "Hydrogeomorphic Regions in the Chesapeake Bay Watershed."
- },
- "description": "Generalized lithology (rock type) and physiography based on\ngeologic formations were used to characterize hydrgeomorphic\nregions (HGMR) within the Chesapeake Bay watershed. These\nHGMRs were used in conjunction with existing data to assess\nthe significance of ground-water discharge as a source of\nnitrate load to nontidal streams in the Chesapeake Bay\nwatershed (Bachman and others, 1998). This work is part of\nthe U.S. Geological Survey's (USGS) Chesapeake Bay initative\nto develop an understanding and provide scientific\ninformation for the restoration of the Chesapeake Bay and\nits watershed (Phillips and Caughron, 1997).",
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ef4cf6eb-b740-4a5d-bef4-867a875ff1d1",
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- "description": "The hydrogeology of the valley-fill aquifer system along a 32-mile reach of the Susquehanna River \nvalley and adjacent areas was evaluated in eastern Broome and southeastern Chenango Counties, \nNew York. The surficial geology, inferred ice-marginal positions, and distribution of stratified-drift \naquifers were mapped from existing data. Ice-marginal positions, which represent pauses in the \nretreat of glacial ice from the region, favored the accumulation of coarse-grained deposits whereas \nmore steady or rapid ice retreat between these positions favored deposition of fine-grained lacustrine \ndeposits with limited coarse-grained deposits at depth. Unconfined aquifers with thick saturated \ncoarse-grained deposits are the most favorable settings for water-resource development, and three \nseveral-mile-long sections of valley were identified (mostly in Broome County) as potentially favorable: \n(1) the southernmost valley section, which extends from the New YorkPennsylvania border to about \n1 mile north of South Windsor, (2) the valley section that rounds the west side of the umlaufberg \n(an isolated bedrock hill within a valley) north of Windsor, and (3) the eastwest valley section at the \nBroome County Chenango County border from Nineveh to East of Bettsburg (including the lower reach \nof the Cornell Brook valley). Fine-grained lacustrine deposits form extensive confining units between \nthe unconfined areas, and the water-resource potential of confined aquifers is largely untested.Recharge,\nor replenishment, of these aquifers is dependent not only on infiltration of precipitation directly on \nunconfined aquifers, but perhaps more so from precipitation that falls in adjacent upland areas. \nSurface runoff and shallow groundwater from the valley walls flow downslope and recharge valley \naquifers. Tributary streams that drain upland areas lose flow as they enter main valleys on permeable \nalluvial fans. This infiltrating water also recharges valley aquifers.Current (2012) use of water resources \nin the area is primarily through domestic wells, most of which are completedin fractured bedrock in \nupland areas. A few villages in the Susquehanna River valley have supply wells that draw water from \nbeneath alluvial fans and near the Susquehanna River, which is a large potential source of water from \ninduced infiltration.",
- "distribution": [
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- "accessURL": "https://water.usgs.gov/lookup/getspatial?sir2012-5282_surficial_geology",
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- "format": "XML",
- "mediaType": "application/http",
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- "title": "DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Clipped Updip extent line of the Floridan aquifer system",
- "type": "dataset"
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- "fn": "Michael E. Wieczorek",
- "hasEmail": "mailto:mewieczo@usgs.gov"
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- "distribution": [
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- "accessURL": "https://water.usgs.gov/lookup/getspatial?mrb_e2rf1_bgeol",
- "description": "Landing page for access to the data",
- "format": "XML",
- "mediaType": "application/http",
- "title": "Digital Data"
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- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.2c9980c3-d166-44ea-8896-72438cf02e77.xml",
- "format": "XML",
- "mediaType": "text/xml",
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_2c9980c3-d166-44ea-8896-72438cf02e77",
- "keyword": [
- "Bedrock Geology",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_22d021cc-b897-4d21-8dc1-c24177b67213",
+ "keyword": [
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  "COGB",
  "California",
@@ -3167,18 +1428,19 @@
  "MRB8",
  "MRB_E2RF1",
  "MRB_E2RF1WS",
- "Major River Basin",
+ "Major River Basins",
  "Missouri",
  "NAWQA",
  "NEMA",
  "New England and Mid-Atlantic",
  "PANW",
  "Pacific Northwest",
+ "Population density",
  "Rio Grande, Colorado, and Great Basin",
  "SAGT",
  "SPARROW",
  "South Atlantic-Gulf and Tennessee",
- "USGS:2c9980c3-d166-44ea-8896-72438cf02e77",
+ "USGS:22d021cc-b897-4d21-8dc1-c24177b67213",
  "environment",
  "geoscientificInformation",
  "inlandWaters"
@@ -3192,20 +1454,19 @@
  "theme": [
  "geospatial"
  ],
- "title": "Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Bedrock Geology"
- },
- "description": "This tabular data set represents the area of bedrock geology types in square meters compiled for every catchment of \nMRB_E2RF1 catchments for Major River Basins (MRBs, Crawford and others, 2006). The source data set is the \n\"Geology of the Conterminous United States at 1:2,500,000 Scale--A Digital Representation of the 1974 P.B. King \nand H.M. Beikman Map\" (Schuben and others, 1994).\n\t\t\nThe MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection Agency's \n(USEPA) ERF1_2 and include enhancements to support national and regional-scale surface-water quality \nmodeling (Nolan and others, 2002; Brakebill and others, 2011).\n\t\t\nData were compiled for every MRB_E2RF1 catchment for the conterminous United States covering New England \nand Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the Great Lakes, Ohio, Upper Mississippi, \nand Souris-Red-Rainy (MRB3), the Missouri (MRB4), the Lower Mississippi, Arkansas-White-Red, and Texas-Gulf \n(MRB5), the Rio Grande, Colorado, and the Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and \nCalifornia (MRB8).",
+ "title": "Attributes for MRB_E2RF1 Catchments in Selected Major River Basins: Population Density, 2000"
+ },
+ "description": "This data set represents the average population density, in number of people per square kilometer \nmultiplied by 10 for the year 2000, compiled for every MRB_E2RF1 catchment of selected Major \nRiver Basins (MRBs, Crawford and others, 2006). The source data set is the 2000 Population \nDensity by Block Group for the Conterminous United States (Hitt, 2003).\n\t\t\nThe MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental Protection \nAgency's (USEPA) RF1_2 and include enhancements to support national and regional-scale \nsurface-water quality modeling (Nolan and others, 2002; Brakebill and others, 2011).\n\t\t\nData were compiled for every MRB_E2RF1 catchment for the conterminous United States covering \ncovering New England and Mid-Atlantic (MRB1), South Atlantic-Gulf and Tennessee (MRB2), the \nGreat Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy (MRB3), the Missouri (MRB4), the \nLower Mississippi, Arkansas-White-Red, and Texas-Gulf (MRB5), the Rio Grande, Colorado, and \nthe Great basin (MRB6), the Pacific Northwest (MRB7) river basins, and California (MRB8).",
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/5a327b61-10a2-44c0-a00c-48dc9d4abf05/raw",
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+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/0069d6de-16f1-439c-9b89-d8d9b6a06abe/raw",
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- "keyword": [
- "Bedrock Geology",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_22d021cc-b897-4d21-8dc1-c24177b67213",
+ "keyword": [
  "CALI",
  "COGB",
  "California",
@@ -3228,23 +1489,24 @@
  "MRB8",
  "MRB_E2RF1",
  "MRB_E2RF1WS",
- "Major River Basin",
+ "Major River Basins",
  "Missouri",
  "NAWQA",
  "NEMA",
  "New England and Mid-Atlantic",
  "PANW",
  "Pacific Northwest",
+ "Population density",
  "Rio Grande, Colorado, and Great Basin",
  "SAGT",
  "SPARROW",
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- "USGS:2c9980c3-d166-44ea-8896-72438cf02e77",
+ "USGS:22d021cc-b897-4d21-8dc1-c24177b67213",
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- "last_harvested_date": "2026-09-16T00:42:55.739860",
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@@ -3259,9 +1521,9 @@
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- "popularity": 3,
+ "popularity": 2,
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- "slug": "attributes-for-mrb_e2rf1-catchments-by-major-river-basins-in-the-conterminous-united-state-8150d",
+ "slug": "attributes-for-mrb_e2rf1-catchments-in-selected-major-river-basins-population-density-2000",
  "spatial_centroid": {
  "lat": 34.6090464,
  "lon": -102.8775756
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  ],
- "title": "Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Bedrock Geology",
+ "title": "Attributes for MRB_E2RF1 Catchments in Selected Major River Basins: Population Density, 2000",
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+ "_score": 8.627283,
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  "dcat": {
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@@ -3314,14 +1576,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Charles Cannon",
- "hasEmail": "mailto:ccannon@usgs.gov"
- },
- "description": "The Umpqua River drains 12,103 square kilometers (4,673 square miles) in southwest Oregon \nbefore flowing into the Pacific Ocean at Winchester Bay near the city of Reedsport. In cooperation \nwith the Portland District of the U.S. Army Corps of Engineers (USACE), the USGS evaluated \nsediment transport and gravel storage along the downstream alluvial reaches of the North and \nSouth Umpqua Rivers and the entire mainstem Umpqua River. This includes the lower 46.8 \nkilometers (29.1 miles) of the North Umpqua River and the lower 122.6 kilometers (76.2 miles) \nof the South Umpqua River. \n\t\t\nThe Umpqua River gravel transport study involved multiple analyses, including tracking patterns \nof historical channel change and estimation of a sediment budget. To support these analyses, \ndigital channel maps were produced to depict channel and floodplain conditions along the \nUmpqua River system from different time periods.\n\t\t\nGIS layers defining the active channel of the Umpqua River system were developed for three \ntime periods: 1939, 1967, and 2005. For the South Umpqua River and the 19 kilometers (12 miles) \nof the mainstem Umpqua River downstream from the confluence of the North and South Umpqua \nRivers, GIS layers were also developed for the time periods 1994, 2000, and 2009.\n\t\t\nFor this project, the active channel was defined as area typically inundated during annual high \nflows, and includes the low-flow channel as well as side channels, islands, and channel-flanking \ngravel bars. The active channel datasets were developed by digitizing from aerial photographs. \nAerial photographs from 1939 and 1967 were scanned, rectified, and mosaiced for this project. \nDigital orthophotographs from 1994, 2000, 2005, and 2009 are publicly available (See metadata \nfor each photograph set for more information on the rectification process and resolution of each \ndataset). Although our study area encompasses the Umpqua River and lower reaches of the \nNorth and South Umpqua Rivers, the extent of each dataset depended upon the underlying \naerial photographs; for example, the 1967 photographs extend only as far downstream as \nfloodplain kilometer 7, whereas the 1939 and 2005 datasets extend to the mouth of the \nUmpqua River at the Pacific Ocean.",
+ "fn": "Integrated Modeling &Prediction Division",
+ "hasEmail": "mailto:gs-w-model-data-management@usgs.gov"
+ },
+ "description": "This is a coverage of the boundaries and codes used for the\nU.S. Geological Survey's National Water-Quality Assessment (NAWQA)\nProgram Study-Unit investigations in the conterminous United\nStates, excluding the High Plains Regional Ground-Water Study.\nThe data set represents the areas studied during the first decade\nof the NAWQA Program, from 1991-2001 (\"cycle 1\").",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?umpqua_River_Oregon_Active_Channel_2009",
+ "accessURL": "https://doi.org/10.5066/P9JL08QN",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -3330,21 +1592,23 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.f499b51c-7f89-49e0-aefd-753c59b9ce46.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.fc1a985d-2a19-4058-8888-94a334f981fb.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
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  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_f499b51c-7f89-49e0-aefd-753c59b9ce46",
- "keyword": [
- "Douglas County",
- "Oregon",
- "USGS:f499b51c-7f89-49e0-aefd-753c59b9ce46",
- "Umpqua River",
- "active channel",
- "environment",
- "fluvial geomorphology",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fc1a985d-2a19-4058-8888-94a334f981fb",
+ "keyword": [
+ "Aquifer system",
+ "Ground water",
+ "NAWQA",
+ "National Water-Quality Assessment Program",
+ "River basin",
+ "Surface water",
+ "USGS:fc1a985d-2a19-4058-8888-94a334f981fb",
+ "Water quality",
+ "environment",
  "geoscientificInformation",
  "inlandWaters"
  ],
@@ -3353,34 +1617,36 @@
  "@type": "org:Organization",
  "name": "U.S. Geological Survey"
  },
- "spatial": "-123.515137, 42.925749, -122.935283, 43.378060",
- "theme": [
- "geospatial"
- ],
- "title": "Umpqua River Oregon Active Channel 2009"
- },
- "description": "The Umpqua River drains 12,103 square kilometers (4,673 square miles) in southwest Oregon \nbefore flowing into the Pacific Ocean at Winchester Bay near the city of Reedsport. In cooperation \nwith the Portland District of the U.S. Army Corps of Engineers (USACE), the USGS evaluated \nsediment transport and gravel storage along the downstream alluvial reaches of the North and \nSouth Umpqua Rivers and the entire mainstem Umpqua River. This includes the lower 46.8 \nkilometers (29.1 miles) of the North Umpqua River and the lower 122.6 kilometers (76.2 miles) \nof the South Umpqua River. \n\t\t\nThe Umpqua River gravel transport study involved multiple analyses, including tracking patterns \nof historical channel change and estimation of a sediment budget. To support these analyses, \ndigital channel maps were produced to depict channel and floodplain conditions along the \nUmpqua River system from different time periods.\n\t\t\nGIS layers defining the active channel of the Umpqua River system were developed for three \ntime periods: 1939, 1967, and 2005. For the South Umpqua River and the 19 kilometers (12 miles) \nof the mainstem Umpqua River downstream from the confluence of the North and South Umpqua \nRivers, GIS layers were also developed for the time periods 1994, 2000, and 2009.\n\t\t\nFor this project, the active channel was defined as area typically inundated during annual high \nflows, and includes the low-flow channel as well as side channels, islands, and channel-flanking \ngravel bars. The active channel datasets were developed by digitizing from aerial photographs. \nAerial photographs from 1939 and 1967 were scanned, rectified, and mosaiced for this project. \nDigital orthophotographs from 1994, 2000, 2005, and 2009 are publicly available (See metadata \nfor each photograph set for more information on the rectification process and resolution of each \ndataset). Although our study area encompasses the Umpqua River and lower reaches of the \nNorth and South Umpqua Rivers, the extent of each dataset depended upon the underlying \naerial photographs; for example, the 1967 photographs extend only as far downstream as \nfloodplain kilometer 7, whereas the 1939 and 2005 datasets extend to the mouth of the \nUmpqua River at the Pacific Ocean.",
+ "spatial": "-127.872474, 22.877918, -65.356310, 51.601234",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001"
+ },
+ "description": "This is a coverage of the boundaries and codes used for the\nU.S. Geological Survey's National Water-Quality Assessment (NAWQA)\nProgram Study-Unit investigations in the conterminous United\nStates, excluding the High Plains Regional Ground-Water Study.\nThe data set represents the areas studied during the first decade\nof the NAWQA Program, from 1991-2001 (\"cycle 1\").",
  "distribution_titles": [
  "Digital Data",
  "Original Metadata"
  ],
- "harvest_record": "https://catalog.data.gov/harvest_record/0ac18100-0da4-45de-904c-45a572fde4c7",
- "harvest_record_raw": "https://catalog.data.gov/harvest_record/0ac18100-0da4-45de-904c-45a572fde4c7/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/8917f70e-beb1-431a-bcb0-7395265b42bf",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/8917f70e-beb1-431a-bcb0-7395265b42bf/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_f499b51c-7f89-49e0-aefd-753c59b9ce46",
- "keyword": [
- "Douglas County",
- "Oregon",
- "USGS:f499b51c-7f89-49e0-aefd-753c59b9ce46",
- "Umpqua River",
- "active channel",
- "environment",
- "fluvial geomorphology",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fc1a985d-2a19-4058-8888-94a334f981fb",
+ "keyword": [
+ "Aquifer system",
+ "Ground water",
+ "NAWQA",
+ "National Water-Quality Assessment Program",
+ "River basin",
+ "Surface water",
+ "USGS:fc1a985d-2a19-4058-8888-94a334f981fb",
+ "Water quality",
+ "environment",
  "geoscientificInformation",
  "inlandWaters"
  ],
- "last_harvested_date": "2026-09-16T00:42:42.379688",
+ "last_harvested_date": "2026-09-17T00:27:25.264781",
  "organization": {
  "aliases": [
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@@ -3397,33 +1663,33 @@
  "parent_identifier": null,
  "popularity": 1,
  "publisher": "U.S. Geological Survey",
- "slug": "umpqua-river-oregon-active-channel-2009",
+ "slug": "national-water-quality-assessment-nawqa-study-unit-investigations-in-the-conterm-1991-2001",
  "spatial_centroid": {
- "lat": 43.1066734,
- "lon": -123.2831954
+ "lat": 34.3672444,
+ "lon": -102.86600839999998
  },
  "spatial_shape": {
  "coordinates": [
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- 42.925749
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- [
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- [
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+ -127.872474,
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+ [
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+ 22.877918
  ]
  ]
  ],
@@ -3432,16 +1698,16 @@
  "theme": [
  "geospatial"
  ],
- "title": "Umpqua River Oregon Active Channel 2009",
+ "title": "National Water-Quality Assessment (NAWQA) Study-Unit Investigations in the conterminous United States 1991-2001",
  "type": "dataset"
  },
  {
- "_score": 8.920008,
+ "_score": 9.098751,
  "_sort": [
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- 8.920008,
- 3,
- "7fef9f06-897d-49fe-a3be-476ba14613c6"
+ 1789604841978,
+ 9.098751,
+ 1,
+ "bb9f90f2-ce10-4db6-a5fa-4342137fc5be"
  ],
  "dcat": {
  "accessLevel": "public",
@@ -3450,14 +1716,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Water Webserver Team",
- "hasEmail": "mailto:h2oteam@usgs.gov"
- },
- "description": "This data set represents the extent of the Lower Cretaceous aquifers in the states of Montana, \nWyoming, South Dakota, Kansas, Nebraska, Iowa, and Minnesota..",
+ "fn": "Greg Nalley",
+ "hasEmail": "mailto:gmnalley@usgs.gov"
+ },
+ "description": "Point coverage of bathymetry target points for Lake Minnewashta in Dickinson Co., Iowa. \nThe U.S. Geological Survey conducted a bathymetric survey of Lake Minnewashta in 2004.",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?lower_cretaceous_aquifer",
+ "accessURL": "https://doi.org/10.5066/P9TLIKG1",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -3466,27 +1732,26 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.3894c73a-25df-4ab6-b7b5-f58d28622fe4.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.f38b0969-d936-4bd6-b17a-5a21ad1b595f.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
  }
  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_3894c73a-25df-4ab6-b7b5-f58d28622fe4",
- "keyword": [
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_f38b0969-d936-4bd6-b17a-5a21ad1b595f",
+ "keyword": [
+ "Bathymetry",
+ "Contours",
+ "Dickinson County",
+ "Hydrology",
+ "InlandWaters",
  "Iowa",
- "Kansas",
- "Minnesota",
- "Montana",
- "Nebraska",
- "South Dakota",
- "USGS:3894c73a-25df-4ab6-b7b5-f58d28622fe4",
- "Wyoming",
- "aquifer",
- "aquifer extent",
- "environment",
- "geoscientificInformation",
- "groundwater",
+ "Lake Minnewashta",
+ "Lakes",
+ "USGS",
+ "USGS:f38b0969-d936-4bd6-b17a-5a21ad1b595f",
+ "environment",
+ "geoscientificInformation",
  "inlandWaters"
  ],
  "modified": "2020-11-17T00:00:00Z",
@@ -3494,39 +1759,38 @@
  "@type": "org:Organization",
  "name": "U.S. Geological Survey"
  },
- "spatial": "-110.445968, 35.158217, -92.577802, 50.055367",
- "theme": [
- "geospatial"
- ],
- "title": "Lower Cretaceous aquifers"
- },
- "description": "This data set represents the extent of the Lower Cretaceous aquifers in the states of Montana, \nWyoming, South Dakota, Kansas, Nebraska, Iowa, and Minnesota..",
+ "spatial": "-95.132157, 43.357169, -95.122495, 43.364930",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Individual Target Data-Collection Points for Lake Minnewashta, Dickinson County, Iowa"
+ },
+ "description": "Point coverage of bathymetry target points for Lake Minnewashta in Dickinson Co., Iowa. \nThe U.S. Geological Survey conducted a bathymetric survey of Lake Minnewashta in 2004.",
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+ "contactPoint": {
+ "@type": "vcard:Contact",
+ "fn": "Utah Water Science Center",
+ "hasEmail": "mailto:rrowland@usgs.gov"
+ },
+ "description": "This map shows the USGS (United States Geologic Survey), NWIS (National\nWater Inventory System) Hydrologic Data Sites for Cache County, Utah.\n\t\t\nThe scope and purpose of NWIS is defined on the web site:\n\t\t\nhttp://water.usgs.gov/public/pubs/FS/FS-027-98/",
+ "distribution": [
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+ "description": "Landing page for access to the data",
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+ "mediaType": "application/http",
+ "title": "Digital Data"
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+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.48af96a0-d6b3-4ff9-8bd5-e83f6612fa1c.xml",
+ "format": "XML",
+ "mediaType": "text/xml",
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- "Duchesne County",
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  "Estuary",
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@@ -3631,7 +2349,7 @@
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- "USGS:e092349f-05f6-488a-acd3-9d829a831bde",
+ "USGS:48af96a0-d6b3-4ff9-8bd5-e83f6612fa1c",
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@@ -3645,26 +2363,26 @@
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- "title": "Hydrologic Data Sites for Duchesne County, Utah"
- },
- "description": "This map shows the USGS (United States Geologic Survey), NWIS (National\nWater Inventory System) Hydrologic Data Sites for Duchesne County, Utah.\n\t\t\nThe scope and purpose of NWIS is defined on the web site:\n\t\t\nhttp://water.usgs.gov/public/pubs/FS/FS-027-98/",
+ "spatial": "-112.09588623, 41.4980278, -111.50995636, 41.9994278",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Hydrologic Data Sites for Cache County, Utah"
+ },
+ "description": "This map shows the USGS (United States Geologic Survey), NWIS (National\nWater Inventory System) Hydrologic Data Sites for Cache County, Utah.\n\t\t\nThe scope and purpose of NWIS is defined on the web site:\n\t\t\nhttp://water.usgs.gov/public/pubs/FS/FS-027-98/",
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/0e4fd368-560d-47b6-acef-3fbdfaf938e1/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/309c9a82-372c-4e51-b585-4f12223892e1",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/309c9a82-372c-4e51-b585-4f12223892e1/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e092349f-05f6-488a-acd3-9d829a831bde",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_48af96a0-d6b3-4ff9-8bd5-e83f6612fa1c",
  "keyword": [
  "Altitude",
- "Duchesne",
- "Duchesne County",
+ "Cache",
+ "Cache County",
  "Estuary",
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@@ -3673,7 +2391,7 @@
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  "State of Utah",
  "Stream",
- "USGS:e092349f-05f6-488a-acd3-9d829a831bde",
+ "USGS:48af96a0-d6b3-4ff9-8bd5-e83f6612fa1c",
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@@ -3682,7 +2400,7 @@
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- "last_harvested_date": "2026-09-16T00:41:45.453635",
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@@ -3697,35 +2415,35 @@
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+ "popularity": 2,
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- "slug": "hydrologic-data-sites-for-duchesne-county-utah",
+ "slug": "hydrologic-data-sites-for-cache-county-utah",
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@@ -3734,16 +2452,16 @@
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+ "title": "Hydrologic Data Sites for Cache County, Utah",
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@@ -3752,14 +2470,14 @@
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- },
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+ "fn": "Joann Dixon",
+ "hasEmail": "mailto:jdixon@usgs.gov"
+ },
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- "accessURL": "https://water.usgs.gov/lookup/getspatial?sir2014-5047_altitude_of_top_of_middle_Fort_Union_hydrogeologic_unit_in_Williston_basin",
+ "accessURL": "https://doi.org/10.5066/P9CNZUWV",
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@@ -3768,63 +2486,75 @@
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- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.c7f06a7c-a5d0-4b65-bd62-746b3ae13e1c.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.2c476afe-ef85-4561-8f8f-9fe6fceabce3.xml",
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+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_2c476afe-ef85-4561-8f8f-9fe6fceabce3",
+ "keyword": [
+ "Alabama",
+ "Florida",
+ "Floridan aquifer system",
+ "Geology",
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+ "South Carolina",
+ "Stratigraphy",
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+ "United States Geological Survey",
+ "environment",
+ "geoscientificInformation",
+ "inlandWaters",
+ "overburden",
+ "residuum",
+ "thickness"
  ],
  "modified": "2020-11-17T00:00:00Z",
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+ "spatial": "-88.425655, 30.453013, -83.697396, 32.352911",
+ "theme": [
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+ },
+ "description": "Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system were \ndeveloped to define an updated hydrogeologic framework as part of the U.S. Geological Survey Groundwater \nResources Program. This feature class contains a gridded surface depicting thickness of residuum in feet. \nIt was calculated by surface subtraction: land surface DEM - fig19_top_FAS_raster",
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- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c7f06a7c-a5d0-4b65-bd62-746b3ae13e1c",
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+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_2c476afe-ef85-4561-8f8f-9fe6fceabce3",
+ "keyword": [
+ "Alabama",
+ "Florida",
+ "Floridan aquifer system",
+ "Geology",
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+ "South Carolina",
+ "Stratigraphy",
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+ "overburden",
+ "residuum",
+ "thickness"
+ ],
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@@ -3839,35 +2569,35 @@
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- "popularity": 3,
+ "popularity": 2,
  "publisher": "U.S. Geological Survey",
- "slug": "altitude-of-the-top-of-the-middle-fort-union-hydrogeologic-unit-in-the-williston-structura",
+ "slug": "ds926-digital-surfaces-and-thicknesses-of-selected-hydrogeologic-units-of-the-floridan-aqu-fbf73",
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@@ -3876,16 +2606,16 @@
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  "geospatial"
  ],
- "title": "Altitude of the top of the middle Fort Union hydrogeologic unit in the Williston structural basin",
+ "title": "DS926 Digital surfaces and thicknesses of selected hydrogeologic units of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina -- Raster surface depicting the thickness of residuum in southwestern Georgia and southeastern Alabama",
  "type": "dataset"
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@@ -3894,14 +2624,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Philp T. Harte",
- "hasEmail": "mailto:ptharte@usgs.gov"
- },
- "description": "The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and\nthe New Hampshire Department of Environmental Services, developed a model for used with \nMODFLOW-2005 and MODPATH5 to evaluate groundwater flow and advective transport under\npre- and post-remediation conditions in the crystalline-rock aquifer in the vicinity of the Savage\nMunicipal Water-Supply Well Superfund site Milford, New Hampshire. In addition, a previously\ndeveloped model (https://doi.org/10.3133/sir20045176 and https://doi.org/10.3133/ofr20121079)\nwas used with MOC3D to evaluate the solute-transport of tetrachloroethylene (PCE). In 2010 \nPCE, a chlorinated volatile organic compound, was detected in groundwater from monitoring \nwells tapping the deep (more than 300 feet below land surface) fractures in a crystalline-rock \naquifer. The crystalline-rock aquifer underlies the Milford-Souhegan glacial-drift (MSGD) aquifer\n(a high water-producing aquifer) and the Savage Municipal Water-Supply Well Superfund site. \nResidential water-supply wells are within one-quarter of a mile of the PCE-contaminated \nmonitoring wells and many are likely installed in similar rock types and formations as those of\nthe monitoring wells. The need to understand and quantify flow and transport in the crystalline-\nrock aquifer is crucial in assessing strategies for remediation. The current, area-wide model \nsimulates flow in the crystalline-rock aquifer and covers a much larger area than previous models\nwith the goal of improving the computation of groundwater flow from distal locations to the \nresidential wells and the area. This USGS data release contains all of the input and output files\n for the simulations described in the associated model documentation report \n(https://doi.org/10.3133/sir20205137).",
+ "fn": "Mackenzie Keith",
+ "hasEmail": "mailto:mkeith@usgs.gov"
+ },
+ "description": "The Coquille River system is an unregulated system that encompasses 2,745 square kilometers of southwestern \nOregon and flows into the Pacific Ocean near the town of Bandon, Oregon. Beginning in the Rogue River-Siskiyou National Forest, \nthe South Fork Coquille River gains the Middle Fork Coquille River (drainage area 798 square kilometers) and shortly thereafter the \nNorth Fork Coquille River (749 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey \ncompleted a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream \ngravel extraction along the the South Fork Coquille River from river kilometer (RKM) 115.4 near its confluence with Upper Land Creek \nto RKM 58.5 at its confluence with the North Fork Coquille River, the mainstem Coquille River from RKM 58.5 at the confluence of the \nSouth and North Forks of the Coquille River to its mouth, the Middle Fork Coquille River from RKM 15.4 to its confluence with the \nSouth Fork Coquille River, and the North Fork Coquille River from RKM 14.6 to its confluence with the South Fork Coquille River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Coquille River basin \nfrom different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were \ndeveloped for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically \ninundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel \nbars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 \nand 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the \nrectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.",
  "distribution": [
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  "@type": "dcat:Distribution",
- "accessURL": "https://doi.org/10.5066/F7J102FK",
+ "accessURL": "https://doi.org/10.5066/P9KHUP44",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -3910,73 +2640,71 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.226705a8-2a0e-4dda-8e36-84d2074d94c5.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.c9045936-bc98-48de-b5f8-e19454f21ee3.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
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  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_226705a8-2a0e-4dda-8e36-84d2074d94c5",
- "keyword": [
- "Groundwater",
- "Groundwater Model",
- "InlandWaters",
- "MOC3D",
- "MODFLOW-2005",
- "MODPATH",
- "Milford",
- "Milford-Souhegan River Valley",
- "New Hampshire",
- "Savage Municipal Water Supply Well Superfund site",
- "Solute transport",
- "USGS:226705a8-2a0e-4dda-8e36-84d2074d94c5",
- "environment",
- "geoscientificInformation",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c9045936-bc98-48de-b5f8-e19454f21ee3",
+ "keyword": [
+ "Coos County",
+ "Coquille River",
+ "Curry County",
+ "Middle Fork Coquille River",
+ "North Fork Coquille River",
+ "Oregon Coast Range",
+ "South Fork Coquille River",
+ "USGS:c9045936-bc98-48de-b5f8-e19454f21ee3",
+ "aerial photograph",
+ "channel stability",
+ "environment",
+ "fluvial geomorphology",
+ "geoscientificInformation",
+ "historical channel change",
  "inlandWaters",
- "remediation",
- "usgsgroundwatermodel"
- ],
- "modified": "2021-11-10T00:00:00Z",
+ "sediment transport"
+ ],
+ "modified": "2020-11-17T00:00:00Z",
  "publisher": {
  "@type": "org:Organization",
  "name": "U.S. Geological Survey"
  },
- "spatial": "-71.761976, 42.800697, -71.642849, 42.889263",
- "theme": [
- "geospatial"
- ],
- "title": "MODFLOW-2005, MODPATH, and MOC3D used for groundwater flow simulation, pathlines analysis, and solute transport in the crystalline-rock aquifer in the vicinity of the Savage Municipal Water-Supply Well Superfund Site, Milford, New Hampshire"
- },
- "description": "The U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency and\nthe New Hampshire Department of Environmental Services, developed a model for used with \nMODFLOW-2005 and MODPATH5 to evaluate groundwater flow and advective transport under\npre- and post-remediation conditions in the crystalline-rock aquifer in the vicinity of the Savage\nMunicipal Water-Supply Well Superfund site Milford, New Hampshire. In addition, a previously\ndeveloped model (https://doi.org/10.3133/sir20045176 and https://doi.org/10.3133/ofr20121079)\nwas used with MOC3D to evaluate the solute-transport of tetrachloroethylene (PCE). In 2010 \nPCE, a chlorinated volatile organic compound, was detected in groundwater from monitoring \nwells tapping the deep (more than 300 feet below land surface) fractures in a crystalline-rock \naquifer. The crystalline-rock aquifer underlies the Milford-Souhegan glacial-drift (MSGD) aquifer\n(a high water-producing aquifer) and the Savage Municipal Water-Supply Well Superfund site. \nResidential water-supply wells are within one-quarter of a mile of the PCE-contaminated \nmonitoring wells and many are likely installed in similar rock types and formations as those of\nthe monitoring wells. The need to understand and quantify flow and transport in the crystalline-\nrock aquifer is crucial in assessing strategies for remediation. The current, area-wide model \nsimulates flow in the crystalline-rock aquifer and covers a much larger area than previous models\nwith the goal of improving the computation of groundwater flow from distal locations to the \nresidential wells and the area. This USGS data release contains all of the input and output files\n for the simulations described in the associated model documentation report \n(https://doi.org/10.3133/sir20205137).",
+ "spatial": "-124.138746, 43.011355, -123.979985, 43.044044",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Aerial photo mosaic of the Bridge Reach, Middle Fork Coquille River, Oregon in 1939"
+ },
+ "description": "The Coquille River system is an unregulated system that encompasses 2,745 square kilometers of southwestern \nOregon and flows into the Pacific Ocean near the town of Bandon, Oregon. Beginning in the Rogue River-Siskiyou National Forest, \nthe South Fork Coquille River gains the Middle Fork Coquille River (drainage area 798 square kilometers) and shortly thereafter the \nNorth Fork Coquille River (749 square kilometers). In cooperation with the U.S. Army Corps of Engineers, the U.S. Geological Survey \ncompleted a reconnaissance-level assessment of channel condition and bed-material transport relevant to the permitting of in-stream \ngravel extraction along the the South Fork Coquille River from river kilometer (RKM) 115.4 near its confluence with Upper Land Creek \nto RKM 58.5 at its confluence with the North Fork Coquille River, the mainstem Coquille River from RKM 58.5 at the confluence of the \nSouth and North Forks of the Coquille River to its mouth, the Middle Fork Coquille River from RKM 15.4 to its confluence with the \nSouth Fork Coquille River, and the North Fork Coquille River from RKM 14.6 to its confluence with the South Fork Coquille River. To \nsupport these analyses, digital channel maps were produced to depict channel and floodplain conditions in the Coquille River basin \nfrom different time periods. GIS layers defining the wetted channel and bar features and channel centerline of Hunter Creek were \ndeveloped for four time periods: 1939, 1967, 2005, and 2009. For this project, the active channel was defined as area typically \ninundated during annual high flows, and includes the low-flow channel as well as side channels, islands, and channel-flanking gravel \nbars. The wetted channel and bar feature datasets were developed by digitizing from aerial photographs. Aerial photographs from 1939 \nand 1967 were scanned, rectified, and mosaicked for this project (See metadata for each photograph set for more information on the \nrectification process and resolution of each dataset). Digital orthophotographs from 2005 and 2009 are publicly available.",
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/9ac9ae6a-4f3f-4cbe-a15d-5bac98805f1d/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/ceb0fb10-9bc2-4bf2-b76c-46ab0b86eec5",
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- "Groundwater Model",
- "InlandWaters",
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- "Milford-Souhegan River Valley",
- "New Hampshire",
- "Savage Municipal Water Supply Well Superfund site",
- "Solute transport",
- "USGS:226705a8-2a0e-4dda-8e36-84d2074d94c5",
- "environment",
- "geoscientificInformation",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_c9045936-bc98-48de-b5f8-e19454f21ee3",
+ "keyword": [
+ "Coos County",
+ "Coquille River",
+ "Curry County",
+ "Middle Fork Coquille River",
+ "North Fork Coquille River",
+ "Oregon Coast Range",
+ "South Fork Coquille River",
+ "USGS:c9045936-bc98-48de-b5f8-e19454f21ee3",
+ "aerial photograph",
+ "channel stability",
+ "environment",
+ "fluvial geomorphology",
+ "geoscientificInformation",
+ "historical channel change",
  "inlandWaters",
- "remediation",
- "usgsgroundwatermodel"
- ],
- "last_harvested_date": "2026-09-16T00:41:19.698947",
+ "sediment transport"
+ ],
+ "last_harvested_date": "2026-09-17T00:24:56.646528",
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@@ -3991,35 +2719,35 @@
  "slug": "doi"
  },
  "parent_identifier": null,
- "popularity": 4,
+ "popularity": 1,
  "publisher": "U.S. Geological Survey",
- "slug": "modflow-2005-modpath-and-moc3d-used-for-groundwater-flow-simulation-pathlines-analysis-and",
+ "slug": "aerial-photo-mosaic-of-the-bridge-reach-middle-fork-coquille-river-oregon-in-1939",
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@@ -4028,16 +2756,16 @@
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- "title": "MODFLOW-2005, MODPATH, and MOC3D used for groundwater flow simulation, pathlines analysis, and solute transport in the crystalline-rock aquifer in the vicinity of the Savage Municipal Water-Supply Well Superfund Site, Milford, New Hampshire",
+ "title": "Aerial photo mosaic of the Bridge Reach, Middle Fork Coquille River, Oregon in 1939",
  "type": "dataset"
  },
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+ "_score": 10.020704,
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@@ -4046,14 +2774,14 @@
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  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Water Webserver Team",
- "hasEmail": "mailto:h2oteam@usgs.gov"
- },
- "description": "This data set represents the extent of the Pennsylvanian aquifers in the states of Pennsylavania, \nWest Virginia, Ohio, Virginia, Kentucky, North Carolina, Tennessee, Alabama, Illinois, Indiana, \nand Michigan.",
+ "fn": "William Horak",
+ "hasEmail": "mailto:wfhorak@usgs.gov"
+ },
+ "description": "This digital geospatial data set consists of locations of coal, oil, gas \nand water wells shown as data points in the report, \"Structure, Outcrop, \nand Subcrop of the Bedrock Aquifers Along the Western Margin of the \nDenver Basin, Colorado\" (Robson and others, 1998).",
  "distribution": [
  {
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- "accessURL": "https://water.usgs.gov/lookup/getspatial?pennsylvanian_aquifers",
+ "accessURL": "https://doi.org/10.5066/P961GTAY",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -4062,75 +2790,51 @@
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- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.e7fb6eaa-3d9e-4b13-b113-7ff8b98135cf.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.fc0bddfa-9a8d-481d-8097-749b451085e7.xml",
  "format": "XML",
  "mediaType": "text/xml",
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- "Virginia",
- "West Virginia",
- "aquifer",
- "aquifer extent",
- "environment",
- "geoscientificInformation",
- "groundwater",
- "inlandWaters"
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fc0bddfa-9a8d-481d-8097-749b451085e7",
+ "keyword": [
+ "USGS:fc0bddfa-9a8d-481d-8097-749b451085e7",
+ "environment",
+ "geophysical logs",
+ "geoscientificInformation",
+ "inlandWaters",
+ "wells"
  ],
  "modified": "2020-11-17T00:00:00Z",
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  "name": "U.S. Geological Survey"
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- "theme": [
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- "title": "Pennsylvanian aquifers"
- },
- "description": "This data set represents the extent of the Pennsylvanian aquifers in the states of Pennsylavania, \nWest Virginia, Ohio, Virginia, Kentucky, North Carolina, Tennessee, Alabama, Illinois, Indiana, \nand Michigan.",
+ "spatial": "-105.25683628, 39.2254652, -104.58906752, 40.88667734",
+ "theme": [
+ "geospatial"
+ ],
+ "title": "Location of wells shown in \"Structure, outcrop,, and subcrop of the bedrock aquifers along the western margin of the Denver Basin, Colorado.\" Hydrologic Atlas 742"
+ },
+ "description": "This digital geospatial data set consists of locations of coal, oil, gas \nand water wells shown as data points in the report, \"Structure, Outcrop, \nand Subcrop of the Bedrock Aquifers Along the Western Margin of the \nDenver Basin, Colorado\" (Robson and others, 1998).",
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- "harvest_record_raw": "https://catalog.data.gov/harvest_record/f4477ae9-26a5-42d7-b2eb-b795b341bcc1/raw",
+ "harvest_record": "https://catalog.data.gov/harvest_record/4736ac6f-4767-4a05-b7e8-0263643f6057",
+ "harvest_record_raw": "https://catalog.data.gov/harvest_record/4736ac6f-4767-4a05-b7e8-0263643f6057/raw",
  "has_download": true,
  "has_spatial": true,
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_e7fb6eaa-3d9e-4b13-b113-7ff8b98135cf",
- "keyword": [
- "Alabama",
- "Illinois",
- "Indiana",
- "Kentucky",
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- "geoscientificInformation",
- "groundwater",
- "inlandWaters"
- ],
- "last_harvested_date": "2026-09-16T00:41:12.495340",
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_fc0bddfa-9a8d-481d-8097-749b451085e7",
+ "keyword": [
+ "USGS:fc0bddfa-9a8d-481d-8097-749b451085e7",
+ "environment",
+ "geophysical logs",
+ "geoscientificInformation",
+ "inlandWaters",
+ "wells"
+ ],
+ "last_harvested_date": "2026-09-17T00:24:45.270398",
  "organization": {
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  "dept"
@@ -4145,35 +2849,35 @@
  "slug": "doi"
  },
  "parent_identifier": null,
- "popularity": 5,
+ "popularity": 1,
  "publisher": "U.S. Geological Survey",
- "slug": "pennsylvanian-aquifers",
+ "slug": "location-of-wells-shown-in-structure-outcrop-and-subcrop-of-the-bedrock-aquifers-along-742",
  "spatial_centroid": {
- "lat": 37.386443400000005,
- "lon": -85.2945932
+ "lat": 39.889950055999996,
+ "lon": -104.98972877599999
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@@ -4182,16 +2886,16 @@
  "theme": [
  "geospatial"
  ],
- "title": "Pennsylvanian aquifers",
+ "title": "Location of wells shown in \"Structure, outcrop,, and subcrop of the bedrock aquifers along the western margin of the Denver Basin, Colorado.\" Hydrologic Atlas 742",
  "type": "dataset"
  },
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@@ -4200,14 +2904,14 @@
  ],
  "contactPoint": {
  "@type": "vcard:Contact",
- "fn": "Water Webserver Team",
- "hasEmail": "mailto:h2oteam@usgs.gov"
- },
- "description": "This data set represents the extent of the Northern California volcanic-rock aquifers \nin California.",
+ "fn": "Michaela R. Johnson",
+ "hasEmail": "mailto:mrjohns@usgs.gov"
+ },
+ "description": "This arc and point data set contains streamflow-measurement sites and\nreaches indicating streamflow gain or loss under base-flow conditions along\nRepublican River tributaries in Dundy and Chase Counties, Nebraska during\nJuly 14 to 18, 1975 (U.S. Geological Survey, 1976). The streamflow measurements\nwere made to obtain data on ground-water/surface-water interaction. Flow\nwas observed visually to be zero, was measured, or was estimated at\n55 sites. Tributaries were followed upstream until the first road\ncrossing where zero flow was encountered. For selected streams, points\nof zero flow upstream of the first zero flow site also were checked.\nStreamflow gain or loss for each stream reach was calculated by\nsubtracting the streamflow values measured at the upstream end of\nthe reach and values for contributing tributaries from the\ndownstream value. The data obtained reflected base-flow conditions\nsuitable for estimating streamflow gains and losses for\nstream reaches between sites.\nThis digital data set was created by manually splitting the lines\nfrom a 1:250,000 hydrography data set (Soenksen and others, 1999) at\nevery streamflow-measurement site. Each set of stream segments between\nmeasurement sites was assigned a unique reach number.",
  "distribution": [
  {
  "@type": "dcat:Distribution",
- "accessURL": "https://water.usgs.gov/lookup/getspatial?northern_california_volcanic-rock_aquifers",
+ "accessURL": "https://doi.org/10.5066/P99KP0GU",
  "description": "Landing page for access to the data",
  "format": "XML",
  "mediaType": "application/http",
@@ -4216,53 +2920,69 @@
  {
  "@type": "dcat:Distribution",
  "description": "The metadata original format",
- "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.728d35b7-47ee-40f5-b0f7-1738a03f0a0c.xml",
+ "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.ceba8862-71ac-424d-a9d9-04fc5c96a113.xml",
  "format": "XML",
  "mediaType": "text/xml",
  "title": "Original Metadata"
  }
  ],
- "identifier": "http://datainventory.doi.gov/id/dataset/USGS_728d35b7-47ee-40f5-b0f7-1738a03f0a0c",
- "keyword": [
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- "aquifer",
- "aquifer extent",
- "environment",
- "geoscientificInformation",
- "groundwater",
- "inlandWaters"
+ "identifier": "http://datainventory.doi.gov/id/dataset/USGS_ceba8862-71ac-424d-a9d9-04fc5c96a113",
+ "keyword": [
+ "Chase County",
+ "Dundy County",
+ "Nebraska",
+ "Republican River",
+ "Republican River Basin",
+ "USGS:ceba8862-71ac-424d-a9d9-04fc5c96a113",
+ "base flow",
+ "environment",
+ "gain/loss",
+ "geoscientificInformation",
+ "hydrography",
+ "inlandWaters",
+ "low flow