
The town of Union serves as the focal point of this 2011 survey, showing the grid-like residential core centered around the Union Post Office. To the east of the town center, Union Cemetery sits on elevated ground near the winding course of the Prescott Ditch. The surrounding terrain transitions from the developed streets of the town to the agricultural and irrigation-heavy landscape of the Grande Ronde Valley, where man-made water systems like the Catherine Creek Highline Canal and Elmer Ditch divert water across the plains. Further south, the landscape becomes more varied, moving into the opening of Pyles Canyon and the high plains of Ramo Flat. This area illustrates the specialized infrastructure required for high-altitude ranching and farming, with local road networks like Kofford Rd and High Valley Rd connecting scattered homesteads and the small community of Crooks.
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This is the sole edition of this map. No revisions or reprints were ever made.
1906 · Telocaset
USGS Topo · 1:125,000
1955 · Grangeville
USGS Topo · 1:250,000
1959 · Grangeville
USGS Topo · 1:250,000
1965 · Conley
USGS Topo · 1:24,000
1965 · Union
USGS Topo · 1:24,000
1965 · Medical Springs
USGS Topo · 1:24,000
1965 · Cove
USGS Topo · 1:24,000
1965 · North Powder
USGS Topo · 1:24,000
1965 · Little Catherine Creek
USGS Topo · 1:24,000
1965 · Telocaset
USGS Topo · 1:24,000