Flathead Lake

Majestic Flathead Lake: A Gem in Montana

‍In the heart of Northwestern Montana lies a captivating marvel –  Flathead Lake. Crowned as the largest natural freshwater lake in the western region of the United States, it offers an array of diverse recreational activities and breathtaking sceneries.

Flathead Lake is a remarkable entity, a remnant of the ancient, colossal glacial lake, Lake Missoula from the last interglacial period. It was dammed in 1930 by Kerr Dam, slightly elevating the lake level, and now serves the purpose of generating electricity. The Confederated Salish and Kootenai Tribes have been operating this hydroelectric dam since 2015.


Flathead Lake

Situated amidst the splendid backdrop of the Mission and Salish Mountains, Flathead Lake occupies a unique geographical location. Encompassing an area of 197 square miles, it extends approximately 30 miles in length and 16 miles in width. The lake mirrors the beauty of the surrounding landscape, offering a picturesque panorama that attracts visitors from all over the world.


The lake nestles in the northwest corner of Montana, about seven miles south of Kalispell. Its eastern shore is bordered by Montana Highway 35, while the west side is accessible from US Highway 93, between Polson and Kalispell. It is located about 30 miles southwest of the renowned Glacier National Park, adding to the scenic appeal of the region.


Owing to its location, Flathead Lake enjoys a remarkably mild climate for a region located this far north and inland. The mild climate allows for diverse agricultural practices around the lake, including cherry orchards on the east shore and vineyards for wine production on the west shore. Other agricultural products found around the lake include apples, pears, plums, vegetables, hay, honey, nursery tree, Christmas tree, sod/turf, and wheat.

Recreational Activities

Flathead Lake is a haven for recreation enthusiasts, offering a plethora of activities such as sailing, power boating, waterskiing, swimming, fishing, picnicking, and camping.


Flathead Lake is home to a variety of native and non-native fishes, offering an enticing experience for fishing aficionados. Native species include the bull trout and cutthroat trout, while non-native species include the lake trout, yellow perch, and lake whitefish.

Watersport Rentals

For watersport enthusiasts, businesses like Absolute Water Sport Rentals in Polson provide equipment rental services.

Roadside Attractions

During summer, roadside stalls along the east shore offer a variety of locally grown fruits. These stalls provide a unique shopping experience for visitors and are a testament to the region’s rich agricultural heritage.


To cater to the influx of visitors, there are several motels and rental cabins scattered along the shoreline. Some popular vacation homes include the Lake Blain Vacation Home in Kalispell, A Beautiful House on Big Arm Bay in Big Arm, and AB Properties Vacation Home in Somers.

Flathead Lake

Local Centers

The major population centers around the lake are Kalispell, Bigfork, and Polson. These towns offer a complete variety of groceries, supplies, and information, making them an essential stop for visitors.


Flathead Lake is adorned with a dozen small islands, the largest of which is Wild Horse Island, a 2,165-acre state park. Accessible only by boat, it is a public day use and picnic area, with no overnight camping allowed.


Flathead Lake lies at the southern end of a geological feature known as the Rocky Mountain Trench. The trench, which formed with the Rocky Mountains, extends north into the southern Yukon as a straight, steep valley, which also holds the headwaters of the Columbia River.


Once known as “Salish Lake”, this body of water was named for the Salish Indians. Early European explorers, like David Thompson, called them the Flathead Indians because of a misinterpretation of early Native American sign language.

Recent Events

The summer of 2023 saw abnormally low water levels in the lake, leading to new legislation introduced with the aim to regulate Flathead Lake’s water levels.

Flathead Lake, with its rich history, incredible scenery, and a myriad of recreational activities, is a true gem in the heart of Montana. Whether you’re an adventure enthusiast, nature lover, or just someone seeking tranquility, Flathead Lake offers an unforgettable experience for everyone.



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