DescriptionPrior to 1910, the major bay, or “arm,” on the southwest shore of Flathead Lake was home to the Kootenais, who referred to the area as “big arm.” After the opening of the Flathead Indian Reservation to non-Indian settlement in 1910, homesteaders came to the area to farm and log. Big Arm State Park, just north of town, is today a popular place for camping, fishing, sailing, and boating.Contributing InstitutionMontana Historical Society Library and ArchivesGeolocation[1] Elevation2938 ft.CountyLake County