2023 Map of Peterson Ridge
USGS Topo · Published 2023About this map
Peterson Ridge and Blalock Mtn anchor this high-elevation landscape in Umatilla County, where the headwaters of several major drainages begin their descent. The area is defined by the complex branching of Cottonwood Creek, including its North Fork, Middle Fork, and South Fork tributaries. These deep canyons are separated by high points such as Saddle Mtn and Pikes Peak, which provide significant topographic relief.
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Map Details
Editions of this 2023 Peterson Ridge Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1919 · Walla Walla
USGS Topo · 1:125,000
1921 · Walla Walla
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1953 · Walla Walla
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1958 · Walla Walla
USGS Topo · 1:250,000
1963 · Big Meadows
USGS Topo · 1:24,000
1963 · Tollgate
USGS Topo · 1:24,000
1963 · Blalock Mountain
USGS Topo · 1:24,000
1963 · Peterson Ridge
USGS Topo · 1:24,000