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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
13135520 NORTH FORK BIG WOOD RIVER NEAR SAWTOOTH NRA HEADQUARTERS NEAR KETCHUM, ID
LOCATION - Lat 43°47'10", long 114°25'09" referenced to North American Datum of 1983, in sec.03, T.5 N., R.17 E., Blaine County, ID, Hydrologic Unit 17040219, Amber Lakes quad., on left bank approximately 250 ft. upstream of bridge.
DRAINAGE AREA - 40 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - April 2011 to current year.
GAGE - Water-stage recorder. Elevation of gage datum is arbitrary.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1, 270 ft³/s June 8, 2017, gage height, 7.48 ft; minimum daily, 7.63 ft³/s Jan. 31, 2019.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Continuous water temperature data were collected from May 14 to Sept. 24, 2014.
REMARKS - Numerical uncertainty is not currently computed for time-series water-quality records but qualitative ratings are provided based on professional judgment. The temperature sensor was installed as part of a baseline study on water-quality and biological conditions on May 14, 2014 and removed indefinitely on Sept. 24, 2014. 100% of the daily values will be reported between May 15 and Sept. 23, 2014. No daily values are estimated.
Water Year 2014: Quality of water-temperature records good.
