USGS Water-Year Summary 2021
06406500 BATTLE CREEK BELOW HERMOSA, SD
LOCATION - Lat 43°43'31.59", long 102°54'20.38" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 SE 1/4 sec.03, T.4 S., R.10 E., Pennington County, SD, Hydrologic Unit 10120109, at left downstream side of bridge on State Highway 40, approximately 9 mi upstream from mouth, and 18.0 mi southeast of Hermosa.
DRAINAGE AREA - 284 mi².
- Revisions: Discharge measurement gage heights of Mar. 26, 2020 and Jun. 12, 2020, were revised on Feb. 8, 2021, based on changes to the reference gage datum.
PERIOD OF RECORD - Oct. 1950 to Sept. 1953, Oct. 1988 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2800.32 ft above NAVD of 1988. Oct. 1, 1950, to Sept. 30, 1953, nonrecording gage at same site and different datum.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1972 reached a stage of about 4 ft (present datum) higher than that of May 23, 1952, from information by local resident.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,060 ft³/s, May 23, 1952, from rating curve extended above 110 ft³/s, gage height, 8.13 ft, different datum; minimum daily discharge, 0.00 ft 3/s, Oct. 1, 1950, no flow for many days in most years.