Musselshell River - Spring 2011 Flood

Spring 2011 Flood

There was major flooding on the Musselshell River in May 2011. On May 26 the flooding inundated portions of Roundup. Cresting and flow rate records were set along several sections of the river, such as Mosby and Shawmut, near Harlowton. The crest of the flood at 14.16 feet (4.32 m), more than 4 feet (1.2 m) over flood state, exceeded the record previously set in 1975.