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Water-Year Summary for Site 06386500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
  • For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
  • For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
  • Not all sites have reports available for every water year.
Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2020: 2019-10-01 to 2020-09-30
 

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USGS Water-Year Summary 2020
06386500 CHEYENNE RIVER NEAR SPENCER, WY
LOCATION - Lat 43°25'16", long 104°07'52" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 NE 1/4 sec.25, T.40 N., R.61 W., Niobrara County, WY, Hydrologic Unit 10120106, on right bank at downstream side of old highway bridge, 0.1 mi downstream from Sage Creek, 1.8 mi downstream from Robbers Roost Creek, and 17.0 mi northwest of Edgemont, SD.
DRAINAGE AREA - 5,323 mi² of which 1 mi² probably is noncontributing.
REVISIONS HISTORY - WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - Oct. 1948 to Sept. 1974, Oct. 2003 to Oct. 2017, Mar. 2020 to Oct. 2020. Published as South Fork Cheyenne River near Spencer Oct. 1949 to Sept. 1951.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 3,600 ft above NGVD of 1929, from topographic map. Prior to Oct. 18, 1955, water-stage recorder at site 400 ft upstream. Oct. 18, 1955, to Aug. 1, 1961, at site 2,500 ft upstream, Aug. 1, 1961, to Aug. 22, 1962, at site 2,200 ft upstream.
REMARKS - For Accuracy of records for water years prior to 2014 are noted in the individual Annual Data Reports for those water years. For water years 2014 onward, records good except for estimated discharges, which are poor. Many small reservoirs above station used for stock and irrigation water, total capacity, about 45,000 acre-ft. Satellite data-collection platform at station. Station operated by the Wyoming Water Science Center from Oct. 1948 to Sept. 1974.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 16,000 ft³/s, May 27, 1962, gage height, 13.74 ft, site then in use; minimum daily discharge, 0.00 ft³/s, Oct. 4, 1948, no flow at times in most years.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Chemical analysis: Water years 1951-54, 1969-70, and 1972-79, 2005-present. Sediment records: Periodic samples taken May 1971 to July 1974, Mar. 2004 to Aug. 2012.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: Mar. 2004 to Aug. 2012(seasonal, discontinued). pH: Mar. 2004 to Aug. 2012(seasonal, discontinued). WATER TEMPERATURE: Mar. 2004 to Aug. 2012(seasonal, discontinued). DISSOLVED OXYGEN: March 2004 to August 2012(seasonal, discontinued). TURBIDITY: Mar. 2004 to Aug. 2012(seasonal, discontinued).