
Umatilla National Forest encompasses the majority of this landscape, where the high country of the Blue Mountains is defined by prominent landforms like Collins Butte and High Spring Ridge. The terrain is deeply incised by drainages such as Stahl Canyon and Dixon Basin, creating a complex network of ridges and draws. Water management in this high-elevation environment is evidenced by the presence of the Long Prairie Reservoir and Aspen Reservoir, alongside numerous named springs like Collins Butte Spring and Flatiron Spring.
93 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.
1953 · Kimberly
USGS Topo · 1:62,500
1953 · Spray
USGS Topo · 1:62,500
1953 · Pendleton
USGS Topo · 1:250,000
1955 · Canyon City
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1969 · Lefevre Prairie
USGS Topo · 1:24,000
1969 · Lonerock
USGS Topo · 1:24,000
1969 · Chapin Creek
USGS Topo · 1:24,000
1980 · Monument
USGS Topo · 1:100,000