
Lake Almanor and the surrounding timberlands of the Lassen National Forest define this high-altitude landscape in Plumas County. The settlement of Prattville sits along the southwestern shore, connected by Prattville Butt Reservoir Rd to the southern Butt Valley Reservoir. This area reflects a decades-long integration of water management and recreation, with established communities like Almanor and Lake Almanor West serving as focal points for residential and seasonal development.
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1886 · Lassen Peak
USGS Topo · 1:250,000
1892 · Lassen Peak
USGS Topo · 1:250,000
1894 · Lassen Peak
USGS Topo · 1:250,000
1955 · Almanor
USGS Topo · 1:62,500
1955 · Westwood
USGS Topo · 1:250,000
1956 · Mt. Harkness
USGS Topo · 1:62,500
1956 · Chester
USGS Topo · 1:62,500
1958 · Westwood
USGS Topo · 1:250,000
1958 · Jonesville
USGS Topo · 1:62,500
1959 · Westwood
USGS Topo · 1:250,000