1964 Map of Boulder Chain Lakes

About this map

The White Cloud Peaks dominate this high-altitude landscape within the Challis National Forest, as it was recorded during aerial surveys in the late 1950s and field-checked in the mid-1960s. The map illustrates a dramatic alpine environment centered on the Boulder Chain Lakes, a series of high basins including Hummock Lake, Hourglass Lake, and Shelf Lake. The serrated geography is defined by sharp ridgelines like Serrate Ridge and Red Ridge, which separate deep glacial cirques and expansive meadows.