1964 Map of Marshall Peak

About this map

Silver King Mine, Ruby Mine, and Pilgrim Mine represent the industrial history of this high-elevation landscape where the Smoky Mountains meet the Sawtooth Range. The 1964 field check captures the headwaters of the South Fork Boise River and the complex drainage system of the Ross Fork Basin, which is accessible only via a network of Jeep Trails. Boundary lines for both the Boise National Forest and Sawtooth National Forest intersect here, along with the county line between Blaine and Camas. The terrain is defined by steep gulches like Eureka Gulch and Jakes Gulch, while high-altitude water bodies such as Perkins Lake sit beneath the prominent Marshall Peak. This survey provides a record of the mid-century mining infrastructure and primitive transit routes that remained active in this remote interior of Idaho.