USGS Water-Year Summary 2022
06109500 MISSOURI RIVER AT VIRGELLE, MT
LOCATION - Lat 48°00'13.62", long 110°15'31.76" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SE 1/4 sec.13, T.26 N., R.11 E., Chouteau County, MT, Hydrologic Unit 10040101, on left bank 0.2 mi upstream from Virgelle ferry, 0.6 mi southwest of Virgelle, 1.8 mi downstream from Spring Coulee, and at river mile 2,034.2.
DRAINAGE AREA - 34,000 mi² of which 671 mi² probably is noncontributing.
- WSP 1729: Drainage area. WDR MT-2013: Drainage area.
PERIOD OF RECORD - February 1935 to current year. Prior to October 1953, published as "at Loma."
GAGE - Water-stage recorder. Elevation of gage is 2,507.50 ft, referenced to the National Geodetic Vertical Datum of 1929. Prior to Sept. 30, 1953, water-stage recorder at Loma, 18 mi upstream, 2,543.40 ft.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood in June 1908 reached a stage about 2 ft higher than that of June 5, 1953, from information by local residents.
EXTREMES FOR PERIOD OF RECORD - Maximum peak flow from rating curve extended above 66,000 ft³/s for former site at Loma. Maximum peak stage was from flood mark.