USGS Water-Year Summary 2018
10113500 BLACKSMITH FORK ABOVE UTAH POWER AND LIGHT CO.'S DAM, NEAR HYRUM, UT
LOCATION - Lat 41°37'25", long 111°44'17" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 NE 1/4 sec.08, T.10 N., R.2 E., Cache County, UT, Hydrologic Unit 16010203, on right bank 1.1 mi upstream from diversion dam, and 6 mi east of Hyrum.
DRAINAGE AREA - 263 mi².
- WSP 1514: 1925. WDR UT-74-1: Drainage area.
PERIOD OF RECORD - October 1913 to September 1996, March 2000 to current year. Monthly discharge only for October 1913, published in WSP 1314.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 5,020 ft above NGVD of 1929, from topographic map. October 2, 1934 to May 27, 1987 at site 1,200 ft downstream at different datum. Prior to Oct. 2, 1934, at site 200 ft downstream at different datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,650 ft³/s, May 14, 1984, gage height, 7.12 ft, site and datum then in use; minimum, 4.7 ft³/s, Nov 28, 1979.
PERIOD OF RECORD - October 2001 to current year.
INSTRUMENTATION - An 8.2-inch diameter, unheated, tipping bucket rain gage.