2020 Map of Mount Calowahcan

About this map

The Mission Range dominates this portion of the Flathead National Forest, forming a high-elevation divide between Lake and Missoula Counties. This 2020 survey details a landscape defined by extreme relief, where glacial cirques hold numerous alpine water bodies including the Mollman Lakes, Summit Lake, and the remote Ashley Lakes. High peaks like Mt Calowahcan and McDonald Peak tower over the drainage basins of Post Cr and Mollman Cr. Human access is limited to a few corridor routes such as the Eagle Pass Tr and the winding McDonald Lake Rd, which leads toward the larger McDonald Lake at the range's base. The map illustrates the complex hydrography of the region, where streams like S Fork Elk Cr and Crazy Horse Cr descend from ridges like Elk Ridge, feeding into a network of isolated lakes such as Spook Lake and Frog Lakes.