LOCATION.--Lat 43° 40'40", long 113° 37'52"(Rev.)(NAD83), in NE1/4 SW1/4 NW1/4 sec.17, T.4 N., R.24 E., Custer County, Hydrologic Unit 17040218, Miller Peak quad., at Marcroft Ranch, 0.2 mi upstream from Willow Creek, and 14 mi southwest of Darlington.

DRAINAGE AREA.--93.4 mi². Mean elevation, 7,960 ft.

PERIOD OF RECORD.--May 1966 to September 1974 (discontinued). May 1913 to September 1916, May 1920 to September 1922, at site 4 mi downstream, published as "near Darlington" (sta 13131000), not equivalent owing to diversions and inflow.

GAGE.--Water-stage recorder. Elevation of gage is 6,240 ft above NGVD of 1929, from topographic map.

REMARKS.--Diversions above station for irrigation of about 800 acres. Antelope Creek follows line between Custer and Butte Counties.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 829 ft³/s May 24, 1967, gage height, 6.86 ft; minimum daily, 12 ft³/s Jan. 2, 1974.