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Thickness of the Upper Hell Creek hydrogeologic unit in the Williston structural basin

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: February 10, 2026 | Last Modified: 2020-11-17T00:00:00Z
These data represent the thickness, in feet, of the Upper Hell Creek hydrogeologic unit in the Williston structural basin. The data are presented as ASCII text files that can be converted to continuous raster format.

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