Valentine Ridge and Alpowa Ridge define the dissected plateau of the Blue Mountains' northern foothills in this 2013 U.S. Geological Survey topographic map. The landscape is marked by deep drainage systems including Davis Canyon, Megginson Gulch, and Sheep Gulch, which all feed toward the winding paths of Stember Cr and Alpowa Cr. The boundary between Garfield Co and Asotin Co cuts east-to-west across the central portion of the map, illustrating how political lines often bisect the natural flow of these water systems.
69 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.
1910 · Pullman
USGS Topo · 1:125,000
1943 · Peola
USGS Topo · 1:62,500
1945 · Clarkston
USGS Topo · 1:62,500
1946 · Peola
USGS Topo · 1:62,500
1948 · Clarkston
USGS Topo · 1:62,500
1955 · Pullman
USGS Topo · 1:250,000
1958 · Pullman
USGS Topo · 1:250,000
1964 · Kirby
USGS Topo · 1:24,000
1964 · Colton
USGS Topo · 1:24,000
1964 · Bishop
USGS Topo · 1:24,000