1958 Map of Arsenic Peak

About this map

Arsenic Peak towers over a landscape defined by the intersection of mountain geography and early 20th-century resource management. Located within the Lewis and Clark National Forest and the Sun River Game Preserve, this terrain reveals the early infrastructure of the South Fork Sun River valley. The map details the impact of water management, showing the Gibson Reservoir and Reclamation Flats, alongside human outposts like the Sorrell Guest Resort and K L Ranch. Numerous pack trails crisscross the ridges, connecting points such as Sheep Reef and The Bars, indicating the era's reliance on trail networks for access to the backcountry. The inclusion of Medicine Springs and the Gaging Station further highlights the focus on the natural and hydrologic resources of this Montana wilderness.