
Lost Trail Pass and Chief Joseph Pass serve as the primary gateways across the Continental Divide, where the high-altitude borders of the Bitterroot National Forest, Beaverhead National Forest, and Salmon National Forest converge. This 1966 survey documents a mid-century landscape of recreation and forest management, featuring a Ski Tow and Sports Area near the pass, alongside the Roadside Park and the remote Hogans Guard Sta. The network of Pack Trails and Jeep Trails provides access to prominent heights like Saddle Mtn, which is topped by a Lookout Tower. Headwaters of the North Fork Salmon River and Joseph Creek illustrate the hydrographic importance of this mountain crest, while a single Prospect and Gravel Pit indicate localized industrial activity.
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3 editions found
1955 · Dillon
USGS Topo · 1:250,000
1956 · Elk City
USGS Topo · 1:250,000
1957 · Dillon
USGS Topo · 1:250,000
1958 · Dillon
USGS Topo · 1:250,000
1960 · Elk City
USGS Topo · 1:250,000
1960 · Piquett Mountain
USGS Topo · 1:62,500
1962 · Dillon
USGS Topo · 1:250,000
1965 · Dillon
USGS Topo · 1:250,000
1965 · Medicine Hot Springs
USGS Topo · 1:24,000
1966 · Big Hole Pass
USGS Topo · 1:24,000