Lonepine is west of Polson on the Flathead Indian Reservation. The Flathead Indian Reservation is home to three tribes, the Bitterroot Salish, Upper Pend d'Oreille, and the Kootenai. Flathead Lake, just northeast of Lonepine, is the largest natural freshwater lake in the western United States. Recreation on the lake includes: sailing,boating, waterskiing, swimming, fishing, picnicking, and camping. Just south of Lonepine is Hot Springs renowned for its hot mineral springs that still bubble today.