The Bitterroot Range defines the high-altitude divide between Idaho and Montana on this 2020 survey, where the Lolo National Forest meets the Clearwater National Forest. This remote corridor is characterized by dramatic ridges and alpine hydrology, featuring notable summits like Bruin Hill and the prominent Wapito Point. The map provides a detailed look at the drainage patterns of the region, including the headwaters of W Fork Fish Cr and the string of basins containing Siamese Lakes, Steep Lakes, and Fish Lake. For those interested in the historical passage across the mountains, the map identifies Chilcoot Pass and various topographic features such as Pollock Ridge and Swamp Ridge that have long dictated movement through this wilderness area. The survey clearly delineates the border between Mineral County and Clearwater County, showing the intersection of state lines and public land boundaries.
40 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1911 · Lolo
USGS Topo · 1:250,000
1913 · Lolo
USGS Topo · 1:250,000
1956 · Hamilton
USGS Topo · 1:250,000
1959 · Hamilton
USGS Topo · 1:250,000
1960 · Hamilton
USGS Topo · 1:250,000
1960 · Straight Peak
USGS Topo · 1:62,500
1964 · Hamilton
USGS Topo · 1:250,000
1965 · Hoodoo Pass
USGS Topo · 1:24,000
1965 · Osier Ridge
USGS Topo · 1:24,000
1965 · Gorman Hill
USGS Topo · 1:24,000