
The Greenhorn Mountains define this high-elevation corner of Northeast Oregon, where the boundaries of the Umatilla National Forest, Whitman National Forest, and Malheur National Forest converge. This 2020 survey documents a complex system of drainages including W Fork Granite Boulder Cr and Vinegar Cr, which descend from prominent peaks like Vinegar Hill and Ben Harrison Peak.
58 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.
1901 · Sumpter
USGS Topo · 1:125,000
1951 · Bates
USGS Topo · 1:62,500
1951 · Desolation Butte
USGS Topo · 1:62,500
1955 · Canyon City
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1972 · Austin
USGS Topo · 1:24,000
1972 · Granite
USGS Topo · 1:24,000
1972 · Greenhorn
USGS Topo · 1:24,000
1987 · Bates
USGS Topo · 1:100,000
1988 · Vinegar Hill
USGS Topo · 1:24,000