1965 Map of Deadman Pass

About this map

The Continental Divide snake-like path marks the high boundary between Beaverhead National Forest in Montana and Salmon National Forest in Idaho during the mid-1960s. This mountainous terrain is defined by an Old Railroad Grade and its associated tunnel, tracing a legacy of high-altitude transit through the Bitterroot Range. Lower elevations reveal the isolated L-Diamond Ranch along Maiden Creek, representing the sparse cattle-ranching footprint in these remote watersheds. Strategic transit points like Deadman Pass connect the drainage basins of Horse Prairie Creek and Canyon Creek. The map documents a complex hydrology of named seasonal streams including Whiskey Creek, Chippie Creek, and Quaking Asp Creek, which flow through deep incisions like Rough Canyon toward the valley floors below Elk Mountain.