
The Grande Ronde River carves a central path through this section of Union County, dictating the development of the corridor where the settlements of Hilgard and Perry are located. This early 21st-century topography shows how the river and its numerous canyon tributaries, such as Blacksmith Canyon and Peach Canyon, shaped the infrastructure for modern transit routes. While the river valley hosts the primary hubs of activity, the surrounding uplands toward Mahogany Mountain remain relatively undeveloped, dotted only by landmarks like Strober Ranch and several springs. To the southeast, the landscape transitions into a cluster of water features including Morgan Lake, Twin Lake, and Hunter Lake, with the engineering of the Morgan Lake Dam noted. Genealogists and local historians will find the Hilgard Cemetery situated just north of the river, serving as a permanent anchor for the families who settled this rugged terrain.
41 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.
1953 · Pendleton
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1963 · La Grande SE
USGS Topo · 1:24,000
1963 · Hilgard
USGS Topo · 1:24,000
1963 · Summerville
USGS Topo · 1:24,000
1964 · Huron
USGS Topo · 1:24,000
1964 · Drumhill Ridge
USGS Topo · 1:24,000
1964 · Kamela SE
USGS Topo · 1:24,000
1965 · Glass Hill
USGS Topo · 1:24,000
1965 · Little Beaver Creek
USGS Topo · 1:24,000