Challis National Forest and the Sawtooth NF converge in this high-altitude landscape of the Pioneer Mountains. The map reveals a drainage network feeding the E Fork Big Lost River, defined by deep canyons such as Howell Canyon and Bellas Canyon. Human presence is sparse, centered primarily on the Copper Basin Loop Rd and the Copper Basin Cow Camp, indicating the area's continued use for seasonal livestock grazing. High alpine water bodies including Bellas Lakes, Round Lake, and Clear Lake sit beneath prominent summits like Pyramid Peak and Big Black Dome. The presence of The Potholes near the Copper Basin floor suggests a complex glacial or geological history typical of this interior Idaho range. This 2013 survey captures the intersection of Custer and Blaine Counties, where the rugged topography dictates both the road placement and the boundaries of public land use.
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This is the sole edition of this map. No revisions or reprints were ever made.
1895 · Hailey
USGS Topo · 1:125,000
1897 · Hailey
USGS Topo · 1:125,000
1935 · MacKay
USGS Topo · 1:96,000
1955 · Idaho Falls
USGS Topo · 1:250,000
1955 · Hailey
USGS Topo · 1:250,000
1958 · Idaho Falls
USGS Topo · 1:250,000
1959 · Hailey
USGS Topo · 1:250,000
1960 · Muldoon Canyon
USGS Topo · 1:62,500
1960 · Copper Basin
USGS Topo · 1:62,500
1962 · Hailey
USGS Topo · 1:250,000