
The Challis National Forest dominates the northern landscape of this Custer County region, where high-elevation drainage systems like Summerhouse Canyon and Bear Canyon Creek carve through the terrain. The transition from these timbered slopes to the valley floor is marked by geological points of interest, notably Barney Hot Springs and Iron Springs. The southern half of the map centers on the Mud Flats Valley, a broad expanse defined by the meandering course of the Little Lost River. This area illustrates a mid-century pastoral landscape, where water management is visible through features like a Ditch and an Aband Canal. Settlement is sparse, represented by functional sites such as a Radio Facility and Campgrounds near Summit Creek, suggesting the area's importance for both resource management and remote recreation during the 1980s.
29 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1935 · Borah Peak
USGS Topo · 1:125,000
1938 · Borah Peak
USGS Topo · 1:125,000
1955 · Dubois
USGS Topo · 1:250,000
1956 · Donkey Hills
USGS Topo · 1:62,500
1957 · Gilmore
USGS Topo · 1:62,500
1957 · Hawley Mountain
USGS Topo · 1:62,500
1958 · Dubois
USGS Topo · 1:250,000
1967 · Short Creek
USGS Topo · 1:24,000
1987 · Gilmore
USGS Topo · 1:24,000
1987 · Mulkey Bar
USGS Topo · 1:24,000