
Umatilla National Forest dominates this landscape along the border of Washington and Oregon, where the high ridges of the Blue Mountains divide significant drainage systems. The survey captures a network of high-elevation points such as Deadman Peak, Griffin Peak, and Table Rock, which serve as the headwaters for numerous creeks and rivers. Water sources are critical in this environment, evidenced by the presence of Switchback Spring, Blakely Spring, and Cold Spring.
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3 editions found
1919 · Walla Walla
USGS Topo · 1:125,000
1921 · Walla Walla
USGS Topo · 1:125,000
1937 · Pomeroy
USGS Topo · 1:96,000
1942 · Pomeroy
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1953 · Walla Walla
USGS Topo · 1:250,000
1955 · Pullman
USGS Topo · 1:250,000
1955 · Grangeville
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1958 · Pullman
USGS Topo · 1:250,000