
Greenhorn Mountains define the high terrain of this mid-1990s survey, where the borders of the Umatilla National Forest, Malheur National Forest, and Wallowa-Whitman National Forest converge. This region is a dense network of early mining history, evidenced by numerous named operations such as the Ben Harrison Mine, Portland Mine, and Tempest Mine clustered near Vinegar Hill. The landscape is etched by the drainage basins of the North Fork John Day River and the Middle Fork John Day River, connected by an intricate system of creeks including Desolation Creek and Granite Creek.
62 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