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#1 Federal
Altitude of the top of the combined Lower Hell Creek and Fox Hills aquifers in the Powder River structural basin
- Organization: Department of the Interior
- Dataset Last Updated: November 17, 2020 at 12:00 AM
These data represent the altitude, in feet above North American Vertical Datum of 1988 (NAVD88), of the combined Lower Hell Creek and Fox Hills aquifers in the Powder River basin. The data are...
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Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: July 13, 2026 at 06:01 PM

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