USGS Water-Year Summary for Site 06191500

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	Available Parameters
	00010 Temperature, water(Max.,Min.,Mean)
	00060 Discharge(Mean)
	00095 Specific cond at 25C(Max.,Min.,Mean)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

06191500 YELLOWSTONE RIVER AT CORWIN SPRINGS, MT

LOCATION - Lat 45°06'43.63", long 110°47'37.20" referenced to North American Datum of 1983, in NW 1/4 SE 1/4 NW 1/4 sec.30, T.8 S., R.8 E., Park County, MT, Hydrologic Unit 10070002, on left bank 20 ft downstream from county road bridge at Corwin Springs, 1.3 mi upstream from Mulherin Creek, 7 mi northwest of Gardiner, and at river mile 549.7.

DRAINAGE AREA - 2,616 mi².

REVISIONS HISTORY - WSP 1309: 1912. WSP 1509: 1889-94, 1911, 1913, 1916-18, 1920-21, 1925, 1927. WSP 1559: Drainage area. Water Data Report MT-04-1: Drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - August 1889 to November 1893 (published as "at Horr"), September 1910 to current year. Monthly discharge only for some periods, published in Water Supply Paper (WSP) 1309.

GAGE - Water-stage recorder. Elevation of gage is 5,079.09 ft, referenced to the National Geodetic Vertical Datum of 1929. Nonrecording gages located at site 2 mi upstream at different elevations from Aug. 12, 1889 to Nov. 4, 1893. Nonrecording gages on bridge at present elevation from Sept. 2, 1910 to Apr. 19, 1935.

REMARKS - Natural storage occurs in Yellowstone Lake. Numerous diversions occur downstream of the station.

WATER-QUALITY RECORDS

PERIOD OF RECORD - Water Temperature, March 2016 to current year. Specific conductance, March 2016 to April 5, 2019.

PERIOD OF DAILY RECORD - SPECFIC CONDUCTANCE: March 2016 to April 5, 2019 (annual record, continuous monitor). WATER TEMPERATURE: March 2016 to current year (annual record, continuous monitor).

INSTRUMENTATION - Specific conductance and water temperature probe installed March 24, 2016. Specific conductance was discontinued on April 5, 2019.

REMARKS -

EXTREMES FOR PERIOD OF DAILY RECORD - SPECIFIC CONDUCTANCE (annual records): Maximum daily, 293 microsiemens per centimeter (uS/cm) at 25.0°C, March 27, 2016;minimum daily, 76 uS/cm, June 3, 2017. WATER TEMPERATURE (annual records): Maximum, 22.3°C, August 1, 2021; minimum -0.2°C, January 1, 2020.