1974 Map of Whetstone Ridge

About this map

Montana Prince Mine and O'Brien Mine anchor a cluster of mining prospects in the high timber of the Bitterroot and Deerlodge national forests. This mid-1970s topographic study captures the drainage network of Rock Creek and its many tributaries, including Moose Meadow Cr and Falls Creek. The landscape is defined by its verticality, rising from the Frogpond Basin to the prominent heights of Table Mountain and Whetstone Ridge. The map details a complex web of Pack Trails that served as the primary infrastructure for prospectors and foresters alike, connecting remote alpine waters such as Medicine Lake, Green Canyon Lake, and Little Fish Lake. This survey illustrates the era's focus on resource extraction and land management along the boundary between Granite and Ravalli counties.