
Okanogan National Forest encompasses this high mountain landscape, where the Chewuch River cuts through the western edge of the terrain. The topography is defined by significant elevations like South Twentymile Peak and the namesake Spur Peak to the southeast. A network of alpine drainages including Twentymile Creek, North Fork Boulder Creek, and Junior Creek carve through the steep slopes, illustrating the complex hydrography of the Cascades region.
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.
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