Middle Fork Salmon River carves through the center of this terrain, serving as the primary drainage for a network of high-altitude tributaries including Elkhorn Creek and Sulphur Creek. The landscape is dominated by the elevations of Big Soldier Mountain and Morehead Mountain, creating a complex topography of ridges and basins. Human activity is concentrated along the river corridor and road access points, with backcountry aviation supported by the Morgan Ranch Airport and localized settlement at Sulphur Creek Ranch.
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This is the sole edition of this map. No revisions or reprints were ever made.
1891 · Bear Valley
USGS Topo · 1:125,000
1893 · Bear Valley
USGS Topo · 1:125,000
1957 · Challis
USGS Topo · 1:250,000
1960 · Challis
USGS Topo · 1:250,000
1961 · Greyhound Ridge
USGS Topo · 1:62,500
1961 · Chinook Mtn
USGS Topo · 1:62,500
1963 · Challis
USGS Topo · 1:250,000
1972 · Blue Bunch Mtn
USGS Topo · 1:24,000
1972 · Cape Horn Lakes
USGS Topo · 1:24,000
1972 · Bear Valley Mtn
USGS Topo · 1:24,000