
North Fork John Day River winds through this mountainous terrain at the border of Union and Grant Counties, where early 1970s field checks recorded a landscape defined by forest management and resource extraction. Mining activity is evidenced by the Klopp Placer Mine and Thornburg Placer Mine located along the river's path, while numerous drill holes across the slopes suggest ongoing exploration for mineral or timber resources.
37 named features on this map. Tap any name to fly to it.
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3 editions found
1901 · Sumpter
USGS Topo · 1:125,000
1951 · Desolation Butte
USGS Topo · 1:62,500
1953 · Pendleton
USGS Topo · 1:250,000
1955 · Canyon City
USGS Topo · 1:250,000
1956 · Pendleton
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1965 · Limber Jim Creek
USGS Topo · 1:24,000
1965 · Fly Valley
USGS Topo · 1:24,000
1967 · Tower Mtn
USGS Topo · 1:24,000
1972 · Trout Meadows
USGS Topo · 1:24,000