1958 Map of Arsenic Peak

About this map

Arsenic Peak towers over a complex landscape of drainages and ridges within the Lewis and Clark National Forest during the late 1950s. This area, straddling the boundary of Lewis and Clark and Teton counties, reveals a wilderness utilized for both recreation and conservation. The southern portion of the map is anchored by the Sun River and its South Fork, where human presence is most evident at the Sorrell Guest Resort, K L Ranch, and the White Cabin. This era shows the intersection of water management at Gibson Reservoir and wildlife protection within the Sun River Game Preserve. Notable terrain features like Sheep Reef and Sulphur Hill define the verticality of the region, while the network of Pack Trails and the Circle Trail suggests the primary means of navigating these backcountry reaches before extensive modern road development.