1961 Map of Dun Glen

About this map

Dun Glen (Site) serves as a focal point for this early 1960s study of the East Range, illustrating the transition from 19th-century mining booms to a mid-century landscape of ranching and specialized mineral extraction. The map documents several notable workings including the Black Hole Mine, Little Jupiter Mine, and the Rawhide Mine, which are scattered among the steep drainages of Rockhill Canyon and McCann Canyon. These industrial sites are interspersed with established agricultural outposts like the Grass Valley Ranch and Hayden Ranch, highlighting the region's dual reliance on subterranean wealth and surface grazing.