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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.
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USGS Water-Year Summary 2025
06288400 Bighorn River at Two Leggins Bridge, near Hardin MT
LOCATION - Lat 45°38'39", long 107°39'27" referenced to North American Datum of 1927, in SE 1/4 SW 1/4 NE 1/4 sec.21, T.2 S., R.33 E., Big Horn County, MT, Hydrologic Unit 10080015, on Secondary Highway 313 bridge over the Bighorn River at Two Leggins Fishing Access about 5.3 miles southwest of Hardin MT.
DRAINAGE AREA - 20,610 mi². 20,610 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 2012 to current year.
GAGE - Water-stage recorder. Elevation of gage is 2,930 ft, referenced to the North American Vertical Datum of 1988.
REMARKS - After November 1965, flow has been regulated by Bighorn Lake.
Major regulation prior to November 1965 occurred from 14 reservoirs in Wyoming and one in Montana.
