Flathead Lake

Montana's Inland Sea

Flathead Lake is a natural wonder, the largest freshwater lake west of the Mississippi, stretching 28 miles long and up to 15 miles wide. Its crystal-clear waters, backed by the snow-capped Mission Mountains, create a landscape of stunning beauty that draws visitors year-round. The lake sits at an elevation of 2,893 feet and reaches depths of nearly 400 feet.

The communities surrounding Flathead Lake, Polson, Bigfork, Lakeside, and Somers, each offer their own character. Bigfork is a charming arts village with galleries, theater, and outstanding restaurants. Polson, at the lake's southern end, provides a more relaxed small-town Montana atmosphere. The east shore passes through the Flathead Indian Reservation, home to the Confederated Salish and Kootenai Tribes.

Must-Do Experiences

Cherry Harvest, Visit in July for the famous Flathead cherry season. Roadside stands and U-pick orchards line the east shore, and the sweet Flathead cherries are legendary.

Wild Horse Island, Take a boat or kayak to this 2,163-acre state park island, home to wild horses, bighorn sheep, and bald eagles. No vehicle access, it's a paddle-in paradise.

Bigfork Summer Playhouse, Catch a performance at one of the oldest repertory theaters in the Northwest, running Broadway-quality shows every summer since 1960.

Kayak or Paddleboard, The lake's clarity reveals a mesmerizing underwater world of rocks and driftwood, visible to depths of 30 feet or more on calm days.