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DESCRIPTION:

Latitude 44°03'10",   Longitude 103°18'41"   NAD27

Pennington County, South Dakota, Hydrologic Unit 10120110

Drainage area: 374 square miles

Contributing drainage area: 374 square miles,

Datum of gage: 3,401.20 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1988-07-26	2025-12-25
Daily Data
Discharge, cubic feet per second	1946-08-01	2025-12-24	28995
Gage height, feet	2017-11-19	2025-12-24	2833
Daily Statistics
Discharge, cubic feet per second	1946-08-01	2024-10-15	28566
Gage height, feet	2017-11-19	2024-10-15	2421
Monthly Statistics
Discharge, cubic feet per second	1946-08	2024-10
Gage height, feet	2017-11	2024-10
Annual Statistics
Discharge, cubic feet per second	1946	2025
Gage height, feet	2018	2025
Peak streamflow	1947-06-23	2023-10-12	78
Field measurements	1983-09-06	2025-11-21	408
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1975-10-10	2023-10-04	534
Water-Year Summary	2006	2024	19
Revisions	Loading...

OPERATION:

Record for this site is maintained by the USGS South Dakota Water Science Center

Email questions about this site to South Dakota Water Science Center Water-Data Inquiries

ADDITIONAL INFORMATION

National Weather Service Floodstage 7.0 ft.