USGS Water-Year Summary 2024
06409000 CASTLE CREEK ABOVE DEERFIELD RESERVOIR, NEAR HILL CITY, SD
LOCATION - Lat 44°00'49", long 103°49'48" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 SW 1/4 sec.25, T.1 N., R.2 E., Pennington County, SD, Hydrologic Unit 10120110, at downstream end of highway culvert, 330 ft downstream from South Fork Castle Creek, 500 ft upstream from high-water line of Deerfield Reservoir, 2.5 mi southwest of Deerfield Dam, and 14 mi northwest of Hill City.
DRAINAGE AREA - 79.1 mi².
REVISIONS HISTORY - WSP 1917: 1952(M). WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1948 to current year. Prior to October 1953, published as "above Deerfield Reservoir, near Deerfield."
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 5,912.33 ft above NAVD of 1988, from Highway Department bench mark. Prior to Aug. 31, 1948, nonrecording gage at site 130 ft upstream at datum 2.05 ft higher. Sept. 1, 1948 to May 17, 1983, at same location and datum. May 18, 1983 to Oct. 11, 1985, at site 300 ft upstream at same datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,120 ft³/s, May 22, 1952, from rating curve extended on basis of slope-area measurement, gage height, 5.81 ft.