
Mining operations and timber-fed narrow gauge rail lines dominate this late-nineteenth-century landscape within the Blue Mountains. The thriving hub of Sumpter sits at the head of the Sumpter Valley River, serving as a vital nexus for the region's intense gold mining activity. High in the Elkhorn Ridge, specialized lode mines such as the Baisley-Elkhorn, Columbia, and Golconda are clearly marked, illustrating the shift from early placer mining to industrial quartz operations. This survey captures several small settlements and camps including Belleview, Bourne, and Robinsonville during the peak of the Eastern Oregon mining boom.
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4 editions found
1901 · Baker City
USGS Topo · 1:125,000
1906 · Telocaset
USGS Topo · 1:125,000
1908 · Ironside Mountain
USGS Topo · 1:125,000
1951 · Bates
USGS Topo · 1:62,500
1951 · Desolation Butte
USGS Topo · 1:62,500
1953 · Pendleton
USGS Topo · 1:250,000
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