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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
06078200 MISSOURI RIVER NEAR ULM, MT
LOCATION - Lat 47°26'05.88", long 111°23'18.40" referenced to North American Datum of 1983, in NE 1/4 NW 1/4 NW 1/4 sec.5, T.19 N., R.3 E., Cascade County, MT, Hydrologic Unit 10030102, on left bank 5.6 mi east of Ulm, 9.1 mi downstream from Smith River, and at river mile 2,140.4.
DRAINAGE AREA - 20,605 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 1957 to current year.
GAGE - Water-stage recorder. Elevation of gage is 3,313.27 ft, referenced to the National Geodetic Vertical Datum of 1929.
REMARKS - Flow is regulated by 10 smaller irrigation reservoirs and power plants, Clark Canyon Reservoir
(station number 06015300), and Canyon Ferry Lake (station number 06058500). Numerous diversions for irrigation
occur upstream from station.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1953 reached a stage of about 17 ft; discharge, 35,000 ft³/s. Flood in June 1948 reached a stage of about 16 ft; discharge, 32,000 ft³/s, from information by local residents.
