
The Colville National Forest dominates this section of Ferry County, where the Sanpoil River carves a significant drainage through the western edge of the quadrangle. This mountainous landscape is defined by its series of high summits, including Bear Mtn, Quartz Mtn, and Gibraltar Mtn, which create a complex network of ridgelines and deep drainages. The area is a hub for high-altitude passage, notably featuring a segment of the Pacific Northwest National Scenic Trl as it traverses the southern peaks near Thirteenmile Mtn.
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1904 · Republic
USGS Topo · 1:125,000
1948 · Republic
USGS Topo · 1:62,500
1951 · Wauconda
USGS Topo · 1:62,500
1951 · Republic
USGS Topo · 1:62,500
1953 · Seventeenmile Mtn.
USGS Topo · 1:62,500
1953 · Bald Knob
USGS Topo · 1:62,500
1954 · Okanogan
USGS Topo · 1:250,000
1958 · Okanogan
USGS Topo · 1:250,000
1958 · Aeneas
USGS Topo · 1:62,500
1984 · Republic
USGS Topo · 1:100,000