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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.
USGS Water-Year Summary 2024
06402600 CHEYENNE RIVER NEAR BUFFALO GAP, SD
LOCATION - Lat 43°30'07.12", long 103°04'26.17" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.29, T.6 S., R.9 E., Custer County, SD, Hydrologic Unit 10120109, on upstream side of bridge, 5.8 mi upstream from Cottonwood Creek, and 12 mi east of Buffalo Gap, SD.
DRAINAGE AREA - 9,792 mi² of which 4 mi² probably is noncontributing.
REVISIONS HISTORY - WDR SD-76-1: 1971-75(M), WDR SD-10-1: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1968 to September 1980, March 2007 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 2,812.85 ft. above NAVD of 1988.
REMARKS - 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, Oct. 15, 2020 to Oct. 12, 2022, which are fair and except for estimated discharges, which are poor, unless otherwise noted. Flow regulated by Angostura Reservoir (station 06401000) 34 mi upstream. Satellite data-collection platform at station.
