USGS Water-Year Summary 2021
06360500 MOREAU RIVER NEAR WHITEHORSE, SD
LOCATION - Lat 45°15'21", long 100°50'33" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.17, T.15 N., R.27 E., Dewey County, SD, Hydrologic Unit 10130306, on left bank 30 ft downstream from bridge, 2.4 mi southeast of Whitehorse, 8.8 mi downstream from Little Moreau River, and 16.3 mi southeast of Timber Lake, SD.
DRAINAGE AREA - 4,889 mi² of which 17 mi² probably is noncontributing.
- WDR SD-78-1: 1977. WDR SD-10-1: Drainage area.
PERIOD OF RECORD - June 1954 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 1,662.82 ft above NAVD88. Datum was converted to NAVD88 datum using the National Geodetic Surveys VDATUM transformation tool. Prior to conversion to NAVD88 on Oct. 1, 2019 datum was published as 1,661.48 ft above NGVD29. Prior to Nov. 24, 1954, nonrecording gage at same site and datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 1953 reached a stage of about 26.2 ft. Flood in Mar. 1947 was probably higher.
EXTREMES FOR PERIOD OF RECORD - Minimum daily discharge, 0.00 ft³/s, Jan. 12, 1955, no flow at times in most years.