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Water-Year Summary for Site 06151500

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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)  

Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023
LOCATION - Lat 48°38'58.17", long 109°13'54.10" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NE 1/4 sec.3, T.33 N., R.19 E., Blaine County, MT, Hydrologic Unit 10050008, on left bank, 4 mi north of Chinook, and at river mile 14.
DRAINAGE AREA - 1,631 mi² of which 163 mi² probably is noncontributing.

Water Data Report 2006: Drainage area.  Revision:  Maximum discharge for water year 2017 was revised June 8, 2020 based on audit findings.

PERIOD OF RECORD - April 1905 to September 1921, June 1984 to current year (seasonal records only). Monthly discharge only for some periods was published in Water Supply Paper 1309. Site was published as "North Fork Milk River near Chinook" prior to 1913.
GAGE - Water-stage recorder. Elevation of gage is 2,410 ft, referenced to the North American Vertical Datum of 1988. Apr. 22, 1905 to Apr. 8, 1918, chain gage located 100 ft downstream, and Apr. 9, 1918 to Sept. 30, 1921, chain gage located on bridge 600 ft downstream at same elevation but different from present elevation.
REMARKS - Diversions for irrigation upstream from station.