
Mining operations and high mountain terrain define this 1951 survey of the boundary between Okanogan Co and Ferry Co. The northeastern portion of the sheet is marked by concentrated industrial activity, notably the Knob Hill Mine, Tom Thumb Mine, and Flag Hill Mine near the headwaters of North Fork Granite Creek. This area sits within the overlap of the Chelan National Forest and Colville National Forest, where the landscape is carved by drainage systems like Granite Creek and Tenmile Creek.
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2 editions found
1902 · Osoyoos
USGS Topo · 1:125,000
1904 · Osoyoos
USGS Topo · 1:125,000
1904 · Republic
USGS Topo · 1:125,000
1948 · Curlew
USGS Topo · 1:62,500
1948 · Republic
USGS Topo · 1:62,500
1951 · Curlew
USGS Topo · 1:62,500
1951 · Bodie Mountain
USGS Topo · 1:62,500
1951 · Republic
USGS Topo · 1:62,500
1952 · Disautel
USGS Topo · 1:62,500
1953 · Seventeenmile Mtn.
USGS Topo · 1:62,500