
The high plateau of the Columbia River Basin defines this section of the Oregon interior, where the border between Gilliam Co and Morrow Co follows the local topography. The landscape is dominated by Dalreed Butte, a prominent landmark rising above the surrounding drainage systems. Much of the local geography revolves around the movement of water through this arid terrain, with the winding course of Willow Creek and the man-made Ewing Ditch serving as critical infrastructure for the region's agricultural life. Local road names like Immigrant Ln and Taggares Ln reflect the area's history of movement and land use, while Schoolhouse Canyon suggests the former sites of early rural community centers. State Route Or-74 provides the primary transit artery through the canyon floors, connecting these remote agricultural sections.
12 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.
1906 · Blalock Island
USGS Topo · 1:125,000
1908 · Blalock Island
USGS Topo · 1:125,000
1916 · Arlington
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1953 · The Dalles
USGS Topo · 1:250,000
1956 · The Dalles
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1957 · The Dalles
USGS Topo · 1:250,000
1962 · Alderdale
USGS Topo · 1:24,000
1962 · Heppner Junction
USGS Topo · 1:24,000