
Irrigon stands on the southern bank of the Columbia River at a point where the river widens into Lake Umatilla, a landscape defined by the intersection of water and desert. This modern survey illustrates the town's street grid, featuring family-named routes like Rand Rd and Wilcox Ln that extend south toward the W Extension Irrigation Canal. The presence of the Desert Lawn Memorial Cem and the Po marker indicate the community's established civic core. Beyond the irrigated fields and residential blocks, the topography rises into the dry uplands of Morrow and Umatilla counties. Deep incisions such as Bing Canyon and Fourmile Canyon drain the northern heights toward the river, while the Irrigon Middle Range Channel marks a critical path for navigation within the Columbia's broad expanse.
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This is the sole edition of this map. No revisions or reprints were ever made.
1906 · Blalock Island
USGS Topo · 1:125,000
1908 · Blalock Island
USGS Topo · 1:125,000
1908 · Umatilla
USGS Topo · 1:125,000
1915 · Prosser
USGS Topo · 1:125,000
1917 · Pasco
USGS Topo · 1:125,000
1917 · Prosser
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