High Quality Content by WIKIPEDIA articles! Choteau is a city in and the county seat of Teton County, Montana, United States. It lies along U.S. Routes 89 and 287 (the latter terminating at the former in this city) about 20 miles (32 km) east of the Rocky Mountains, near Flathead National Forest, the Rocky Mountain Division of Lewis and Clark National Forest, and Glacier National Park. The population was 1,781 at the 2000 census. The Montana town is named for French fur-trapper and explorer Pierre Chouteau, Jr., who is also the namesake of Chouteau County, Montana (county seat: Fort Benton).