2024 Map of Thompson Lakes

About this map

Upper Thompson Lake, Middle Thompson Lake, and Lower Thompson Lake form a significant chain of water bodies along the corridor where Lincoln, Flathead, and Sanders counties meet. This mountain landscape is heavily dominated by the Kootenai National Forest, with terrain reaching high points like Bowers Peak and the eastern fringes of the Cabinet Mountains. The drainage network is complex, featuring Barnum Creek in the north and the Thompson River in the southeast, fed by tributaries such as Tallulah Creek and Slimmer Creek. This 2024 survey documents the modern infrastructure of the region, showing a network of forest development roads and the Campbell Ranch Airport near the southeastern corner. It provides a contemporary view of the intersection of timber management and recreation in northwestern Montana, where local roads like Metcalf Rd and Meadow Rd provide access to smaller water bodies like Rainbow Lake and Eli Lake.