The Challis National Forest dominates this high-altitude landscape in central Idaho, where alpine lakes and sharp peaks define the topography. At the heart of the quadrangle lie the namesake Knapp Lakes, feeding into Knapp Creek, while higher elevations are marked by prominent summits like Mt Loening and Cabin Creek Peak. The drainage patterns here are complex, with headwaters flowing into several different systems, including the W Fork Yankee Fork and Loon Creek.
25 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.
1891 · Bear Valley
USGS Topo · 1:125,000
1893 · Bear Valley
USGS Topo · 1:125,000
1919 · Custer
USGS Topo · 1:125,000
1922 · Custer
USGS Topo · 1:125,000
1930 · Casto
USGS Topo · 1:125,000
1957 · Challis
USGS Topo · 1:250,000
1960 · Challis
USGS Topo · 1:250,000
1961 · Greyhound Ridge
USGS Topo · 1:62,500
1963 · Challis
USGS Topo · 1:250,000
1963 · Pinyon Peak
USGS Topo · 1:24,000