USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Custer County, South Dakota

Hydrologic Unit Code 10120106

Latitude 43°30'31", Longitude 103°47'22" NAD27

Land-surface elevation 4,110 feet above NGVD29

Spring discharges from the Spearfish Formation (Triassic-Permian) (230SPRF) local aquifer.

**Period of record**
Begin Date	End Date	Count
1995-08-24	1995-08-24	1

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: South Dakota Water Data Support Team
Page Last Modified: 2025-09-02 22:06:41 EDT
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