Big Arm State Park in MT -- Campground & RV Camping in Montana
Big Arm State Park in MT
MT State Parks allows overnight stays only at the designated sites here.
Big Arm State Park spans 217 acres on the western shore of Flathead Lake, the largest natural freshwater lake in the western United States, at 2,943 feet elevation. Established in 1966, the park provides waterfront camping in RV and tent sites, with direct lake access for fishing, boating, swimming, and water-based recreation. The lakeshore setting offers views across Montana's largest body of freshwater.
Grounded in en.wikipedia.org · read August 24, 2026The road in has not been measured -- unknown, not bad.
The Flathead Lake shoreline is 0.1 mi off. Exposed here -- the nearest through road is 0.1 miles off. Night skies measure Bortle 3 -- a dark rural sky. The nearest town, Polson, is 11 mi off.
September normals 42–72°F, 1.0″ rain. Monthly averages, PRISM 1991–2020.