Challis National Forest dominates this section of Custer County, Idaho, where a distinct sequence of numbered drainages defines the high mountain landscape. This 2013 survey reveals a systematic naming convention for the tributaries of the Yankee Fork, with Fivemile Cr, Sixmile Cr, Sevenmile Cr, Eightmile Cr, Ninemile Cr, Tenmile Cr, and Elevenmile Cr all clearly delineated. These labels suggest a historic travel route where the distance was marked by each successive water crossing along the canyon floor.
26 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.
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 · Custer
USGS Topo · 1:24,000