The Challis National Forest dominates the high-altitude landscape of the Lost River Range in this 2013 Idaho survey. The terrain is defined by a series of steep drainages including Blue Jay Canyon, Cave Gulch, and Franklin Canyon, which transition into the agricultural reaches of the Big Lost River Valley. Water management is central to the valley floor, where man-made infrastructure such as Hanson Ditch, Burnett Ditch, and Fury Ditch redirects alpine runoff to sustain local holdings. The Asay Ranch serves as a lone named settlement marker amidst the vast public lands. For recreational and logistical access, Pass Creek Rd and NF Road 273 provide a corridor through the mountains, connecting the basin to the high-country Bear Creek Campground.
42 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.
1935 · MacKay
USGS Topo · 1:96,000
1935 · Borah Peak
USGS Topo · 1:125,000
1938 · Borah Peak
USGS Topo · 1:125,000
1940 · Mackay
USGS Topo · 1:62,500
1955 · Dubois
USGS Topo · 1:250,000
1955 · Idaho Falls
USGS Topo · 1:250,000
1957 · Hawley Mountain
USGS Topo · 1:62,500
1958 · Dubois
USGS Topo · 1:250,000
1958 · Idaho Falls
USGS Topo · 1:250,000
1960 · Mackay
USGS Topo · 1:62,500