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DESCRIPTION:

Latitude 42°59'45",   Longitude 97°22'10"   NAD27

Yankton County, South Dakota, Hydrologic Unit 10160011

Drainage area: 20,962 square miles

Contributing drainage area: 18,906 square miles,

Datum of gage: 1,154.08 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1990-10-01	2021-05-12
Daily Data
Discharge, cubic feet per second	1981-07-10	2021-05-11	9427
Gage height, feet	2018-05-01	2021-05-11	852
Daily Statistics
Discharge, cubic feet per second	1981-07-10	2021-01-03	9309
Gage height, feet	2018-05-01	2020-12-23	735
Monthly Statistics
Discharge, cubic feet per second	1981-07	2021-01
Gage height, feet	2018-05	2020-12
Annual Statistics
Discharge, cubic feet per second	1981	2021
Gage height, feet	2018	2021
Peak streamflow	1982-06-02	2020-03-20	34
Field measurements	1981-07-10	2021-04-01	323
Field/Lab water-quality samples	1981-10-07	2020-10-21	269
Water-Year Summary	2010	2020	11
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 12.0 ft.