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Overlying surficial deposits and absent areas for the Inyan Kara Formation in the Black Hills area, South Dakota

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: February 10, 2026 | Last Modified: 2020-11-17T00:00:00Z
This data set describes areas where the Inyan Kara Group is directly overlain by surficial deposits, as well as those areas where the Inyan Kara Group is absent in the Black Hills area, South Dakota.

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