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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.
USGS Water-Year Summary 2024
06026420 BIG HOLE RIVER BELOW HAMILTON DITCH, NEAR TWIN BRIDGES, MT
LOCATION - Lat 45°33'00.08", long 112°21'38.43" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NW 1/4 sec.28, T.35 S., R.6 W., Madison County, MT, Hydrologic Unit 10020004, on right bank 100 ft downstream from Hamilton ditch return, 0.2 mi downstream from county road bridge, 0.3 mi downstream from Rochester Creek, 0.8 mi west of Twin Bridges, and at river mile 2.1.
DRAINAGE AREA - 2,790.7 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - July 2007 to current year (seasonal records only).
GAGE - Water-stage recorder. Elevation of gage is 4,630 ft, referenced to the North American Vertical Datum of 1988.
REMARKS - Numerous diversions for irrigation occur upstream from station.
WATER-QUALITY RECORDS
PERIOD OF DAILY RECORD - WATER TEMPERATURE: Seasonal records from July 2007 to current year.
INSTRUMENTATION - Water temperature probe was installed July 19, 2007. Most recent probe installed September 2014.
REMARKS -
EXTREMES FOR PERIOD OF RECORD -
WATER TEMPERATURE: During seasonal operation; Maximum recorded, 27.0°C, July 22, 2007; minimum recorded, 0.0°C, October 28-31, 2019.
