2020 Map of Lake Marshall

About this map

The high peaks of the Mission Range define this high-altitude landscape where the Flathead National Forest meets the Lolo National Forest. This 2020 survey details a complex hydrographic system where the Lindbergh Swan River and W Fork Clearwater River drain the steep slopes of Sunset Peak and Mt Henry. The map reveals a network of alpine basins containing numerous high-elevation water bodies, including the remote Lake Marshall, Lake Dinah, and the interconnected Jocko Crystal Lake system. The presence of forest service routes such as Marshall Lake Rd and Colt Lake Rd suggests the primary human footprint in this wilderness area is centered on forest management and backcountry access, providing a clear view of the drainage patterns and peaks that separate these national forest lands.