
Umatilla National Forest occupies the southern reaches of this landscape, where the terrain shifts between high prairie flats and deep drainage canyons. The geography is defined by a series of distinct upland plateaus such as Hayden Prairie, Miller Prairie, and Courter Prairie, punctuated by volcanic markers like Lava Flat and Camas Butte. Water sources are critical in this environment, represented by numerous isolated points like Brown Cabin Spring, Little Round Prairie Spring, and Luelling Spring.
65 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 · Buttermilk Canyon
USGS Topo · 1:24,000
1969 · Chapin Creek
USGS Topo · 1:24,000
1969 · Hardman
USGS Topo · 1:24,000