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The National Geologic Map Database (NGMDB) is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. The Geologic Mapping Act of 1992 and its...
Search relevance: 1.00 | Views last month: 43 | Catalog Last Checked: August 01, 2026 at 05:53 AM -
This data set represents the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source data set is the "Geology of the...
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These data represent the extent of the Upper Hell Creek hydrogeologic unit in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: August 01, 2026 at 04:32 AM -
These data represent the extent of the lower Fort Union aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 03:33 AM -
These data represent the extent of the upper Fort Union aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:57 AM -
White Mountains airborne magnetic and radiometric geophysical survey, Geophysical Report 2021-3 v. 2, covers parts of Livengood, Circle, and Fairbanks quadrangles 25 kilometers km north of...
Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 03:47 AM -
This tabular data set represents the area of bedrock geology types in square meters compiled for every catchment of MRB_E2RF1 catchments for Major River Basins (MRBs, Crawford and others, 2006)....
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This child item contains geology and hydrogeology data used in the hydrogeologic characterization of the Lake Superior watershed and a shapefile of water budget zones for reporting water budget...
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These data represent the extent of the Lower Hell Creek aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:51 AM -
These data represent the extent of the middle Fort Union hydrogeologic unit in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 06:04 AM -
This ArcView shapefile contains a polygon representation of the geology in the northern part of the (Montana) Powder River Basin. This theme was created specifically for the National Coal...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 06:07 AM -
The Edwards and Trinity aquifers are major sources of water in south-central Texas and are both classified as major aquifers by the State of Texas. The population in Hays and Comal Counties is...
Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 04:57 AM -
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:53 AM -
The Digital Bedrock Geologic-GIS Map of Marsh-Billings-Rockefeller National Historical Park and the Town Boundary of Woodstock, Vermont is composed of GIS data layers and GIS tables, and is...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 04:12 AM -
These data represent the extent of the Fox Hills aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:20 AM -
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 04:55 AM -
Kuskokwim airborne magnetic and radiometric survey, northern Kaiyuh Mountains, Alaska, Geophysical Report 2025-3, covers parts of the the Nulato Quadrangle west of Fairbanks, Alaska. Magnetic and...
Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:52 AM -
These data represent the extent of the Fox Hills aquifer in the Powder River and Williston structural basins.
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 04:17 AM -
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 03:03 AM -
These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual...
Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: August 01, 2026 at 06:15 AM
