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Water-Year Summary for Site 06135000

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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.
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Available Parameters
00060 Discharge(Mean)  

Water year 2019: 2018-10-01 to 2019-09-30

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USGS Water-Year Summary 2019
LOCATION - Lat 48°58'29.35", long 110°25'18.40" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 SE 1/4 sec.9, T.37 N., R.9 E., Hill County, MT, Hydrologic Unit 10050002, on left bank 1.6 mi south of international boundary, 1.7 mi upstream from Lost River, 10 mi northwest of Simpson, 35.5 mi north of Rudyard, and at river mile 479.6.
DRAINAGE AREA - 2,452 mi².
REVISIONS HISTORY - WSP 1086: 1927, 1935. WSP 1559: 1920, maximum discharge(M); 1922 (M); 1926; 1928 (M); 1929; 1930 (M); 1932 (M). WSP 1729: 1912-13, 1921-22, 1929 (M). Water Data Report (WDR) MT-94-1 (M). WDR 1983: Drainage area. WDR MT-98-1: Drainage area.
PERIOD OF RECORD - Sporadic records August 1909 to September 1915, water-year records 1916 and 1917, seasonal records October 1918 to September 1934, water-year records 1935-38, and seasonal records October 1938 to current season. Monthly discharge only for April 1912, published in Water Supply Paper (WSP) 1309.
GAGE - Water-stage recorder. Elevation of gage is 2,660 ft, referenced to the North American Vertical Datum of 1988. Prior to Mar. 1, 1998, water-stage recorder or nonrecording gages at several sites within 15 mi upstream at different elevation. Bureau of Reclamation satellite telemeter is located at the station.
COOPERATION - This is one of a number of stations which are maintained jointly by the United States and Canada.
02/26/2019 to 10/31/2019 (seasonal record): records are good, except estimated records are poor.
02/28/2018 to 10/31/2018 (seasonal record): records are good, except estimated records are poor.
03/01/2017 to 11/02/2017 (seasonal record): records are good, except estimated records are poor.
03/01/2016 to 11/01/2016 (seasonal record): records are good, except estimated records are poor.
02/24/2015 to 11/02/2015 (seasonal record): records are good, except estimated records are poor. 
03/01/2014 to 10/31/2014 (seasonal record): records are good, except records from May 27 to June 27 
are fair, and estimated records are poor.

Beginning in 1917, flow has increased during irrigation season by water from St. Mary Canal (station 
number 05018500). Many diversions for irrigation occur upstream from station.