USGS Water-Year Summary 2023
06307616 TONGUE RIVER AT BIRNEY DAY SCHOOL BRIDGE, NEAR BIRNEY, MT
LOCATION - Lat 45°24'41.78", long 106°27'26.47" referenced to North American Datum of 1983, in SE 1/4 SW 1/4 SW 1/4 sec.8, T.5 S., R.43 E., Rosebud County, MT, Hydrologic Unit 10090102, on right bank, downstream from Bureau of Indian Affairs bridge, 0.2 mi east of Birney Day School, 5.5 mi downstream from Cook Creek, 6.5 mi northeast of Birney, and at river mile 144.3.
DRAINAGE AREA - 2,633 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1979 to current year.
GAGE - Water-stage recorder. Elevation of gage is 3,060 ft, referenced to the North American Vertical Datum of 1988.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water years 1980 to 1993, October 2003 to October 2014.
PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE: May 2004 to October 2014 (seasonal records).
INSTRUMENTATION - A specific conductance probe was installed May 1, 2004.
EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE (seasonal records): Maximum, 1,290 microsiemens per centimeter (uS/cm) at 25.0°C,
May 22-23, 2011; minimum, 266 uS/cm at 25.0°C, June 26, 2014.
EXTREMES FOR CURRENT YEAR - SPECIFIC CONDUCTANCE: During period of seasonal operation, maximum recorded, 832 uS/cm at 25.0°C, April 9, 2014; minimum, 266 uS/cm at 25.0°C, June 26, 2014.