Moses Mountain and Armstrong Mtn dominate the high-elevation terrain of this Okanogan County landscape, where the Bureau of Indian Affairs (BIA) road network provides the primary access through the drainage basins. A complex system of seasonal and perennial streams, including Whitelaw Cr and Omak Cr, carves through the topography, reflecting a drainage pattern that supports the region's natural ecosystem. The presence of numerous BIA routes, such as Bia RD 56 and Bia RD 109, underscores the significance of this area within the Colville Indian Reservation. These corridors connect the various mountain ridges and creek valleys, such as Mill Cr and Parmenter Cr, providing a detailed look at the resource management and infrastructure of the 21st-century tribal lands.
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This is the sole edition of this map. No revisions or reprints were ever made.
1950 · Nespelem
USGS Topo · 1:62,500
1950 · Alameda Flat
USGS Topo · 1:62,500
1952 · Alameda Flat
USGS Topo · 1:62,500
1952 · Disautel
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
1983 · Omak
USGS Topo · 1:100,000
1984 · Nespelem
USGS Topo · 1:100,000
1989 · Disautel
USGS Topo · 1:24,000