1993 Map of Ambrose Valley
USGS Topo · Published 1996About this map
Modoc National Forest land dominates this high-altitude landscape along the border of Modoc and Lassen counties. The map captures a rugged transition where the wide meadows of Ambrose Valley and Ash Valley meet the rising shoulders of Deer Spring Ridge and Slate Spring Ridge. This area is defined by its complex hydrology, featuring numerous named water sources such as Clark Springs, Shell Spring, and Sunflower Spring, which were vital for livestock and local homesteads in this arid terrain.
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Map Details
Editions of this 1993 Ambrose Valley Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
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 · Canby
USGS Topo · 1:62,500
1961 · Alturas
USGS Topo · 1:62,500
1962 · Alturas
USGS Topo · 1:250,000
1962 · Adin
USGS Topo · 1:62,500
1962 · Likely
USGS Topo · 1:62,500
1965 · Alturas
USGS Topo · 1:250,000