
Summerville sits at the edge of the Blue Mountains in Union County, where the valley floor meets the rising timberline of the forest. This landscape is defined by the sharp transition from the irrigated agricultural lands of the Grande Ronde Valley to the complex drainage systems of the mountains. Water management is central to the area's development, evidenced by the extensive network of irrigation features including the Ordell Ditch, Dobbin Ditch, and Wrights Reservoirs.
71 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 · Telocaset
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1955 · Grangeville
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1959 · Grangeville
USGS Topo · 1:250,000
1963 · La Grande SE
USGS Topo · 1:24,000
1963 · Sanderson Spring
USGS Topo · 1:24,000
1963 · Hilgard
USGS Topo · 1:24,000
1963 · Summerville
USGS Topo · 1:24,000
1964 · Thimbleberry Mtn
USGS Topo · 1:24,000