
The Umatilla River valley east of Pendleton serves as the focal point for this survey of eastern Oregon. This region is characterized by a mix of river bottomlands and the rising terrain of Gopher Flats, where the landscape transitions into the agricultural plateaus of Umatilla County. The community of Mission is central to the area, situated near the historic Old Agency Cem and several key tributary systems including Wildhorse Cr and Patawa Cr.
66 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
1966 · Cabbage Hill
USGS Topo · 1:24,000
1966 · Mc Kay Reservoir
USGS Topo · 1:24,000
1966 · Adams
USGS Topo · 1:24,000
1966 · Cayuse
USGS Topo · 1:24,000
1966 · Holdman SE
USGS Topo · 1:24,000
1966 · Table Rock
USGS Topo · 1:24,000
1966 · Pendleton
USGS Topo · 1:24,000