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Area where the Arikaree aquifer is absent, Pine Ridge Indian Reservation and Bennett County, South Dakota

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: September 15, 2025 | Last Modified: 20201117
This data set describes the area within the Pine Ridge Indian Reservation where the Arikaree aquifer (Arikaree Formation) is absent. This absent area includes areas where the Arikaree Formation has been eroded and where outcrops of geologic units older than the Arikaree Formation are present at the land surface.

Complete Metadata

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