How long is the river that begins 40 mi southwest of the county seat of Beltrami County?
Otter Tail River: The Otter Tail River is a 192 mi river in the west-central portion of the U.S. state of Minnesota. Otter Tail River:  It begins in Clearwater County, 40 mi southwest of Bemidji. Bemidji, Minnesota: Bemidji ( ) is a city in Beltrami County (and county seat), in north west Minnesota, United States.
192 mi