
Union stands as the central hub of this Eastern Oregon landscape, where the agricultural expanse of the Grande Ronde Valley meets the high elevations of the Wallowa Mountains. The map reveals a sophisticated early 20th-century water management system, including the State Ditch and Navigation Canal, designed to reclaim and utilize the fertile basin lands. Settlers and travelers of the era followed the path of the Oregon Trail, which traces through the valley near Hot Lake, a landmark known for its geothermal activity.
92 named features on this map. Tap any name to fly to it.
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3 editions found
1901 · Baker City
USGS Topo · 1:125,000
1901 · Sumpter
USGS Topo · 1:125,000
1906 · Telocaset
USGS Topo · 1:125,000
1915 · Pine
USGS Topo · 1:125,000
1953 · Pendleton
USGS Topo · 1:250,000
1954 · Eagle Cap
USGS Topo · 1:62,500
1955 · Baker
USGS Topo · 1:250,000
1955 · Grangeville
USGS Topo · 1:250,000
1955 · Canyon City
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000