
Grasshopper Valley and its surrounding high-desert terrain dominate this 1989 provisional survey of Lassen County. The landscape is characterized by a series of north-south running elevations, most notably Grasshopper Ridge and Dry Valley Ridge, which separate the primary basin from Dry Valley and the Madeline Plains to the northeast. Water management is a central feature of the area, as evidenced by several localized water sources and storage points including Bull Pine Reservoir, Tom Spring Reservoir, and Saddle Horse Flat Reservoir.
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This is the sole edition of this map. No revisions or reprints were ever made.
1886 · Honey Lake
USGS Topo · 1:250,000
1891 · Honey Lake
USGS Topo · 1:250,000
1893 · Honey Lake
USGS Topo · 1:250,000
1954 · Grasshopper Valley
USGS Topo · 1:62,500
1954 · Fredonyer Peak
USGS Topo · 1:62,500
1955 · Westwood
USGS Topo · 1:250,000
1956 · Hayden Hill
USGS Topo · 1:62,500
1956 · Antelope Mtn
USGS Topo · 1:62,500
1958 · Westwood
USGS Topo · 1:250,000
1959 · Westwood
USGS Topo · 1:250,000