2020 Map of Twin Peaks
USGS Topo · Published 2020About this map
Challis National Forest dominates this high-altitude landscape in Custer County, where the terrain rises sharply toward the iconic Twin Peaks. This modern 2020 survey documents a complex drainage system feeding into the Salmon River watershed, including the upper reaches of Challis Creek and Warm Spring Creek. The map shows several alpine water bodies, most notably the Mosquito Flat Reservoir and the Challis Creek Lakes, which sit at the headwaters of their respective drainages.
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Map Details
Editions of this 2020 Twin Peaks Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1919 · Custer
USGS Topo · 1:125,000
1922 · Custer
USGS Topo · 1:125,000
1929 · Bayhorse
USGS Topo · 1:125,000
1930 · Casto
USGS Topo · 1:125,000
1956 · Twin Peaks
USGS Topo · 1:62,500
1957 · Challis
USGS Topo · 1:250,000
1960 · Challis
USGS Topo · 1:250,000
1963 · Challis
USGS Topo · 1:250,000
1963 · Challis Creek Lakes
USGS Topo · 1:24,000
1963 · Bayhorse Lake
USGS Topo · 1:24,000