Henrys Fork

Henrys Fork is a tributary river of the Snake River, approximately long, in southeastern Idaho in the United States. It is also referred to as the North Fork of the Snake River. Its drainage basin is , including its main tributary, the Teton River. Its mean annual discharge, as measured at river mile 9.2 (Henrys Fork near Rexburg) by the United States Geological Survey (USGS), is , with a maximum daily recorded flow of , and a minimum of . The river is named for Andrew Henry, who first entered the Snake River plateau in 1810. Employed by the Missouri Fur Company, he built Fort Henry on the upper Snake River, near modern St. Anthony, but abandoned this first American fur post west of the continental divide the following spring. Henrys Fork of the Snake River near Coffee Pot Rapids Kayaking the Coffee Pot Rapids of the Henrys Fork