The Lemhi River is a 60-mile-long (97 km) river in Idaho in the United States. It is a tributary of the Salmon River, which in turn is tributary to the Snake River and Columbia River. Source: Wikipedia
Maximum discharge on the river today is recorded at the Lemhi River Nr Lemhi Id with a streamflow rate of 78.5 cfs. This is also the deepest point on the Lemhi River, reporting a gauge stage of 3.39 ft. This river is monitored from 2 different streamgauging stations along the Lemhi River, the first of which is perched at an elevation of 4,912 ft, the Lemhi River Nr Lemhi Id .