USGS Water-Year Summary 2021
06471065 ELM RIVER NEAR FREDERICK, SD
LOCATION - Lat 45°50'15", long 98°42'06" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 NW 1/4 sec.08, T.127 N., R.65 W., Brown County, SD, Hydrologic Unit 10160004, on right bank at downstream side of bridge on Brown County Road 5, 1.7 mi downstream of Elm Lake Dam on Elm River, and 8.8 mi west of Frederick.
DRAINAGE AREA - 282 mi² of which 11 mi² probably is noncontributing.
- WDR SD-10-1: Drainage area.
PERIOD OF RECORD - October 1999 to current year (seasonal mean daily gage height and yearly instantaneous peak gage height and discharge).
GAGE - Seasonal water-stage recorder, crest-stage gage. Datum of gage is 1,456 ft above NAVD88, from topographic map. Prior to conversion to to NAVD88, datum was published as 1,455 ft above NGVD29, from topographic map.