
Huasna Valley serves as a central corridor through this portion of the Coast Ranges, where the Huasna River and Huasna Cr carve through a complex system of ridges and deep canyons. The terrain is dominated by prominent elevations such as Huasna Peak, Boar Peak, and Stanley Mtn, illustrating the dramatic relief of the Sierra Madre Mountains as they transition toward the Cuyama River valley.
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This is the sole edition of this map. No revisions or reprints were ever made.
1905 · Lompoc
USGS Topo · 1:125,000
1922 · Nipomo
USGS Topo · 1:62,500
1937 · Branch Mtn
USGS Topo · 1:48,000
1942 · Lompoc
USGS Topo · 1:125,000
1942 · Santa Maria
USGS Topo · 1:62,500
1942 · Branch Mountain
USGS Topo · 1:62,500
1942 · Tepusquet Peak
USGS Topo · 1:62,500
1943 · Tepusquet Peak
USGS Topo · 1:62,500
1943 · Lompoc
USGS Topo · 1:125,000
1947 · Los Coches Mtn
USGS Topo · 1:24,000