Big Hole Pass sits as a critical high-altitude point along the state line shared by Beaverhead County, Montana, and Lemhi County, Idaho. This rugged segment of the Continental Divide is defined by its deep forest geography, split between the Beaverhead National Forest and the Salmon National Forest. The landscape is dominated by steep-sided drainages such as Dahlonega Creek and Nez Perce Cr, which flow away from the primary ridges like Nez Perce Ridge. Access through this remote terrain is marked by the Continental Divide NST and the historic Gibbonsville Rd, indicating a long-standing passage through the mountains. Noteworthy landmarks for navigation and local history include Morgan Jones Lake and the prominent peaks of Bitterroot Mtn and Eagle Mtn.
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This is the sole edition of this map. No revisions or reprints were ever made.
1955 · Dillon
USGS Topo · 1:250,000
1957 · Dillon
USGS Topo · 1:250,000
1958 · Dillon
USGS Topo · 1:250,000
1962 · Dillon
USGS Topo · 1:250,000
1965 · Dillon
USGS Topo · 1:250,000
1966 · Lost Trail Pass
USGS Topo · 1:24,000
1966 · Shewag Lake
USGS Topo · 1:24,000
1966 · Big Hole Battlefield
USGS Topo · 1:24,000
1966 · Jumbo Mountain
USGS Topo · 1:24,000
1966 · Big Hole Pass
USGS Topo · 1:24,000