USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Custer County, South Dakota

Hydrologic Unit Code 10120107

Latitude 43°44'58", Longitude 103°50'30" NAD27

Land-surface elevation 5,380 feet above NGVD29

Spring discharges from the Paleozoic aquifers (N500PLOZOC) national aquifer.

Spring discharges from the Pahasapa Limestone (337PHSP) local aquifer.

**Period of record**
Begin Date	End Date	Count
1995-06-02	1995-06-02	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: 2025-09-12 06:24:07 EDT
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