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#1 Federal

Digital subsurface database of previously published well tops, structural features, and contour maps of the Inyan Kara Group, Minnekahta Formation, Minnelusa Formation, Madison Group, and Deadwood Formation, Black Hills region, South Dakota and Wyoming

Organization: Department of the Interior
Dataset Last Updated: October 27, 2022 at 12:00 AM

This digital data release presents multiple previously published elements of the structural configuration of the Black Hills regional subsurface. The original data within this geodatabase is...

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Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: September 10, 2026 at 10:47 PM

#2 Federal

Digital subsurface database of elevation point data and structure contour maps of multiple subsurface units, Powder River Basin, Wyoming and Montana, USA

Organization: Department of the Interior
Dataset Last Updated: April 19, 2023 at 12:00 AM

This digital data release presents subsurface data from multiple geologic units that were part of a previous study of the regional subsurface structural configuration of the Powder River Basin in...

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Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: September 10, 2026 at 08:41 PM

#3 Federal

Digital database of a 3D Geological Model of the Powder River Basin and Williston Basin Regions, USA

Organization: Department of the Interior
Dataset Last Updated: March 19, 2026 at 12:00 AM

This digital GIS dataset and accompanying nonspatial files synthesize model outputs from a regional-scale volumetric 3-D geologic model that portrays the generalized subsurface geology of the...

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Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: September 10, 2026 at 09:38 PM

#4 Federal

Input Files and Code for: Machine learning can accurately assign geologic basin to produced water samples using major geochemical parameters

Organization: Department of the Interior
Dataset Last Updated: July 26, 2021 at 12:00 AM

As more hydrocarbon production from hydraulic fracturing and other methods produce large volumes of water, innovative methods must be explored for treatment and reuse of these waters. However,...

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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:26 PM

#5 Federal

Digital database of a 3D Geological Model of western South Dakota

Organization: Department of the Interior
Dataset Last Updated: March 19, 2026 at 12:00 AM

This digital GIS dataset and accompanying nonspatial files synthesize the model outputs from a regional-scale volumetric 3-D geologic model that portrays the generalized subsurface geology of...

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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: September 10, 2026 at 10:02 PM

#6 Federal

Digital data of isopach contours and salt extent boundaries from previously published Regional Aquifer System Analysis (RASA) studies on the Northern Great Plains of Wyoming, North Dakota, South Dakota, Montana, and Nebraska

Organization: Department of the Interior
Dataset Last Updated: April 30, 2025 at 12:00 AM

This GIS dataset presents contours and maps from previously published interpretations of hydrogeologic units of the northern Great Plains by Downey (1986). The original source publication was...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: September 10, 2026 at 09:25 PM

#7 Federal

Produced water major ion geochemistry from petroleum wells producing from the Duperow, Birdbear, Red River Formations, and Madison Group in the Williston Basin, North Dakota

Organization: Department of the Interior
Dataset Last Updated: September 10, 2026 at 12:00 AM

This data release includes pH, major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO4, Sr), and total dissolved solids data from produced water samples collected from petroleum...

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Search relevance: 1.00 | Views last month: 0 | Catalog Last Checked: September 13, 2026 at 12:26 AM

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