USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

Available data for this site

Pennington County, South Dakota

Hydrologic Unit Code 10120109

Latitude 43°56'54", Longitude 103°22'48" NAD27

Land-surface elevation 4,720 feet above NGVD29

Spring discharges from the Precambrian Erathem (400PCMB) local aquifer.

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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: 2025-12-10 06:17:14 EST
1.51 1.4 vaww02

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