The Chewuch River corridor and its surrounding peaks define this high-country landscape in Okanogan County. In the early 21st century, the area remains dominated by a network of drainage basins including Twentymile Creek and North Fork Boulder Creek, which carve deep valleys between high points like North Twentymile Peak, South Twentymile Peak, and Spur Peak. The western edge of the map features the river valley itself, while the central and southern portions are marked by numerous small tributaries such as Honeymoon Creek, Junior Creek, and Bromas Creek. A winding system of forest roads, including Nat For Dev Rd 700, provides the primary access to this terrain, which is otherwise defined by its hydrological patterns and significant elevation changes. This survey illustrates the protected nature of the Okanogan-Wenatchee area, where human presence is mostly limited to these established service routes and seasonal access ways.
18 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