2013 Map of Massacre Mountain

About this map

The Lost River Range dominates this 2013 survey of the Challis National Forest in Custer County. This high-altitude landscape is defined by its dramatic hydrology and vertical relief, centered on the prominent summit of Massacre Mtn. To the west, Castle Peak towers over the drainage of Upper Cedar Cr and Lower Cedar Cr, while the rugged descent into Hell Canyon reveals the alpine Shadow Lakes. The map traces the intricate network of water that feeds the Big Lost River basin, including the headwaters of Long Lost Cr and Wet Cr. For researchers, the presence of isolated water bodies like Swauger Lakes and Nolan Lake suggests the seasonal patterns of high-country grazing and recreation that have characterized this part of Idaho for decades.