
The Umatilla River serves as the primary corridor through this portion of Umatilla County, carving a path between the northern plateaus and southern canyons. The settlement of Thorn Hollow is situated along its banks, near where the Thorn Hollow Creek feeds into the main river channel. The surrounding terrain is defined by a series of deep drainages including Rattlesnake Canyon, Shaplish Canyon, and Red Elk Canyon, suggesting a landscape of sharp elevation changes and natural barriers to travel.
31 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.
1935 · Pendleton
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1964 · Thorn Hollow
USGS Topo · 1:24,000
1964 · Athena
USGS Topo · 1:24,000
1964 · Weston Mountain
USGS Topo · 1:24,000
1964 · Duncan
USGS Topo · 1:24,000
1964 · Gibbon
USGS Topo · 1:24,000
1964 · Meacham
USGS Topo · 1:24,000
1966 · Cabbage Hill
USGS Topo · 1:24,000