
The Imnah River valley serves as the central artery for this mountainous region of Wallowa County, where the high ridges of the Wallowa National Forest meet the protected landscapes of the Hells Canyon National Recreation Area. The terrain is characterized by a series of prominent divides, including Jaynes Ridge, Beeler Ridge, and Morgan Ridge, which separate numerous drainage basins like Grouse Creek and Summit Creek.
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.
1920 · Seven Devils Mining District
USGS Topo · 1:48,000
1922 · He Devil
USGS Topo · 1:48,000
1954 · Harl Butte
USGS Topo · 1:62,500
1955 · Grangeville
USGS Topo · 1:250,000
1957 · He Devil
USGS Topo · 1:62,500
1957 · Cuprum
USGS Topo · 1:62,500
1957 · Homestead
USGS Topo · 1:62,500
1959 · Grangeville
USGS Topo · 1:250,000
1987 · Riggins
USGS Topo · 1:100,000
1990 · Puderbaugh Ridge
USGS Topo · 1:24,000