1956 Map of Sonora Pass

About this map

Sonora Peak and the high ridges of the Sierra Nevada define this mid-century landscape where the boundaries of Alpine, Mono, and Tuolumne counties converge. The mapping shows a wilderness managed through seasonal livestock and military presence, illustrated by the Marine Corps Cold Weather Camp near Pickel Meadow and the presence of Connels Cow Camp to the north. This era marks a period of high-altitude accessibility, with the Sonora Pass providing passage between the Toiyabe National Forest and Stanislaus National Forest.