
Ash Valley defines this high-desert landscape in Lassen County, where drainage networks like Ash Cr and Spooner Trough Canyon carve through the basin. The map illustrates a remote corner of the Modoc National Forest, characterized by significant peaks such as Knox Mtn and Anderson Mtn. For those tracing local landmarks or water sources, the terrain is marked by several named springs, including Fleming Spring, Diaz Spring, and Filstone Spring. Transportation is limited to a sparse network of ranch roads, such as Ash Valley Rd and P Bar T Ranch Rd, which reflect the area's continued reliance on livestock and seasonal access. The presence of Sagebrush Flat and Oxendine Draw further emphasizes the specialized geographic vocabulary of this northeastern California interior.
19 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.
1886 · Alturas
USGS Topo · 1:250,000
1886 · Honey Lake
USGS Topo · 1:250,000
1891 · Honey Lake
USGS Topo · 1:250,000
1892 · Alturas
USGS Topo · 1:250,000
1893 · Honey Lake
USGS Topo · 1:250,000
1954 · Grasshopper Valley
USGS Topo · 1:62,500
1954 · Alturas
USGS Topo · 1:250,000
1955 · Westwood
USGS Topo · 1:250,000
1956 · Hayden Hill
USGS Topo · 1:62,500
1958 · Alturas
USGS Topo · 1:250,000