USGS Water-Year Summary 2024
06043120 Gallatin River above Deer Creek, near Big Sky, MT
LOCATION - Lat 45°17'50.20", long 111°12'41.01" referenced to North American Datum of 1983, in SE 1/4 SE 1/4 NE 1/4 sec.22, T.6 S., R.4 E., Gallatin County, MT, Hydrologic Unit 10020008, Gallatin National Forest, on right bank 0.4 mi. upstream from Gallatin Golden Gate Bridge, 0.4 mi upstream from Deer Creek, 4.4 mi. northeast of Big Sky Post Office, and at mile 66.2.
DRAINAGE AREA - 537.6 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 2019 to current year.
GAGE - Water-stage recorder. Datum of gage is 5870.00 ft (NAVD88).
WATER-QUALITY RECORDS
PERIOD OF RECORD - May 2019 to current year.
PERIOD OF DAILY RECORD - WATER TEMPERATURE (seasonal records) : May 2019 to September 2019.
INSTRUMENTATION - Water temperature recorder installed May 1, 2019.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 19.6°C, July 30, 2021; Minimum, 0.5°C, April 13, 2020.