
The West Valley Reservoir dominates this high-altitude landscape on the border of Modoc and Lassen counties, with its waters held back by the West Valley Dam. This 1962 field-checked survey, updated in the early 1980s, captures a rugged transition between the valley floor and the volcanic prominence of Tule Mountain to the south. The area's ranching and transit history is visible through scattered landmarks like the West Valley Ranch and a remote Cem located west of Warm Creek.
28 named features on this map. Tap any name to fly to it.
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5 editions found
1886 · Alturas
USGS Topo · 1:250,000
1892 · Alturas
USGS Topo · 1:250,000
1954 · Alturas
USGS Topo · 1:250,000
1958 · Alturas
USGS Topo · 1:250,000
1961 · Alturas
USGS Topo · 1:62,500
1962 · Alturas
USGS Topo · 1:250,000
1962 · Tule Mountain
USGS Topo · 1:24,000
1962 · Madeline
USGS Topo · 1:24,000
1962 · Cold Spring Mtn
USGS Topo · 1:24,000
1962 · Jess Valley
USGS Topo · 1:24,000