1956 Map of Morrison Lake

About this map

The Continental Divide serves as the spine of this mid-century survey, marking the high-altitude boundary between Beaverhead County and Lemhi County along the Idaho-Montana border. The landscape is defined by the intersection of the Salmon National Forest and Beaverhead National Forest, where the terrain drops sharply into the Lemhi Valley. Notable high points like Baldy Mtn tower over drainages such as Eighteenmile Creek and Medicine Lodge Creek. The presence of a remote Landing Strip and a network of Jeep Trails indicates the limited accessibility of these mountain ranges during the 1950s. Mining activity is subtly documented through labels for a Shaft and Prospect near the Montana side, while alpine features like Morrison Lake and the Deer Creek Reservoir reflect the critical water resources managed within these protected federal lands.