
Duncan sits at the convergence of numerous drainages and ridge systems within the northeast corner of Oregon. The settlement is positioned where Meacham Cr meets Duncan Canyon and Tie Cr, serving as a central point for the network of National Forest development roads that permeate the Umatilla National Forest. The landscape is defined by its dramatic verticality, from the heights of Wilbur Mountain and Black Canyon Butte down to the deep incisions of Dutchman Canyon. These geographic features dictate the passage of modern infrastructure, with CO 911 Rd following the natural course of the water. Named ridges such as Horse Heaven Ridge, Crow Ridge, and Gibbon Ridge frame the horizon, illustrating the complex topographical relief of the Blue Mountains region. For those studying the management of public lands, the map details many springs and creeks, including Junction Spring and Klondike Cr.
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 · Meacham Lake
USGS Topo · 1:24,000
1963 · Bingham Springs
USGS Topo · 1:24,000
1964 · Thorn Hollow
USGS Topo · 1:24,000
1964 · Duncan
USGS Topo · 1:24,000
1964 · Thimbleberry Mtn
USGS Topo · 1:24,000
1964 · Gibbon
USGS Topo · 1:24,000
1964 · Huron
USGS Topo · 1:24,000
1964 · Drumhill Ridge
USGS Topo · 1:24,000