USGS Water-Year Summary 2024
06188000 LAMAR RIVER NEAR TOWER FALLS RANGER STATION, YELLOWSTONE NATIONAL PARK
LOCATION - Lat 44°55'41.44", long 110°23'39.37" referenced to North American Datum of 1983, Park County, WY, Hydrologic Unit 10070001, Yellowstone National Park, on left bank 0.5 mi north of the Cooke City highway, 1.6 mi northeast of Tower Falls Ranger Station, 2.7 mi downstream from Slough Creek, and at river mile 0.5.
DRAINAGE AREA - 668 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1923 to September 1969, May 1985 to September 1986 (seasonal records only), October 1988 to current year.
GAGE - Water-stage recorder. U.S. Geological Survey satellite telemeter is located at the station. Elevation of gage is 6,000 ft, referenced to the North American Vertical Datum of 1988. Prior to Sept. 16, 1925, nonrecording gage and Sept. 16, 1925 to July 29, 1927, water-stage recorder at same site at elevation 1.00 ft higher. July 29, 1927 to Sept. 30, 1969, water-stage recorder at same site and elevation. May 1985 to September 1986, nonrecording gage at same site and elevation.
WATER-QUALITY RECORDS
PERIOD OF RECORD - Water Temperature: April 2014 to current.
PERIOD OF DAILY RECORD - WATER TEMPERATURE: May 2014 to current.
INSTRUMENTATION - Water temperature sensor installed April 30, 2014.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 21.1°C, August 2, 2024; minimum, -0.4°C, January 2, 2016.