Okanogan National Forest encompasses the entirety of this high-elevation landscape in the Cascades, where a complex network of drainage basins defines the topography. The Chewuch River skirts the western edge of the quadrangle, fed by numerous seasonal and perennial tributaries such as No Snake Cr and July Cr. The central terrain is dominated by the massive S Twentymile Peak, which serves as a hydrological divide for the N Fork Twentymile and S Twentymile systems.
36 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.
1906 · Chopaka
USGS Topo · 1:125,000
1954 · Okanogan
USGS Topo · 1:250,000
1955 · Concrete
USGS Topo · 1:250,000
1956 · Tiffany Mountain
USGS Topo · 1:62,500
1956 · Horseshoe Basin
USGS Topo · 1:62,500
1958 · Concrete
USGS Topo · 1:250,000
1958 · Okanogan
USGS Topo · 1:250,000
1962 · Concrete
USGS Topo · 1:250,000
1963 · Doe Mountain
USGS Topo · 1:62,500
1969 · Mt. Barney
USGS Topo · 1:24,000