1964 Map of Boulder Chain Lakes

About this map

White Cloud Peaks dominate this 1964 survey of the central Idaho high country, where the Challis National Forest and Sawtooth National Forest converge. The landscape is defined by a dense concentration of alpine water bodies, most notably the Boulder Chain Lakes and the Big Boulder Lakes system, including Sapphire Lake and Walker Lake. At the heart of the region stands Castle Peak, situated just south of the Castle Mine, indicating the sparse but present industrial history within these high basins.