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DESCRIPTION:

Latitude 43°36'05",   Longitude 100°44'58"   NAD27

Mellette County, South Dakota, Hydrologic Unit 10140203

Drainage area: 1,549 square miles

Contributing drainage area: 1,495 square miles,

Datum of gage: 1,914.19 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1999-01-14	2025-07-09
Daily Data
Discharge, cubic feet per second	1949-10-01	2025-07-08	27664
Gage height, feet	2017-09-30	2025-07-08	2407
Daily Statistics
Discharge, cubic feet per second	1949-10-01	2024-09-30	27394
Gage height, feet	2017-09-30	2024-09-30	2137
Monthly Statistics
Discharge, cubic feet per second	1949-10	2024-09
Gage height, feet	2017-09	2024-09
Annual Statistics
Discharge, cubic feet per second	1950	2024
Gage height, feet	2017	2024
Peak streamflow	1930-05-11	2024-04-27	80
Field measurements	1975-11-06	2025-06-10	437
Field/Lab water-quality samples	1950-12-15	2015-08-12	587
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 13.0 ft.