USGS Water-Year Summary 2022
06205000 STILLWATER RIVER NEAR ABSAROKEE, MT
LOCATION - Lat 45°32'12.27", long 109°25'19.40" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 SE 1/4 sec.30, T.3 S., R.19 E., Stillwater County, MT, Hydrologic Unit 10070005, , revised, on right bank 3 mi downstream from Rosebud Creek, 3.5 mi northeast of Absarokee, 9 mi southwest of Columbus, and at river mile 9.4.
DRAINAGE AREA - 976 mi².
- Water Supply Paper (WSP) 1309: 1911, maximum discharge. WSP 1729: Drainage area. WDR MT-2013: Drainage area.
PERIOD OF RECORD - July 1910 to September 1914 (no winter records), March 1935 to September 1995, October 1995 to September 2000 (seasonal records only), October 2000 to current year.
GAGE - Water-stage recorder. Elevation of gage is 3,950 ft, referenced to the North American Vertical Datum of 1988. Prior to Oct. 1, 1914, nonrecording gage; Mar. 26, 1935, to July 16, 1942, nonrecording gage at bridge 0.5 mi upstream at different elevations; July 17, 1942 to Mar. 23, 2005, water-stage recorder 1.5 mi downstream at elevation 3,873.8 ft (levels by U.S. Army Corps of Engineers).
PERIOD OF DAILY RECORD - WATER TEMPERATURE: July 1, 2009 to current year, seasonal records only.
INSTRUMENTATION - H-377 water temperature thermistor is deployed seasonally along the right bank. Water temperature thermistor is interfaced to the Design Analysis H500.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: During period of seasonal operation, maximum, 23.9 °C, July 30, 2016; minimum,
5.3 °C, Sept. 30, 2018.