1944 Map of Morgan Valley
USGS Topo · Published 1944About this map
Mining operations and isolated cattle ranches define the character of this 1940s landscape where Lake, Napa, and Yolo counties converge. The rugged interior is dominated by the Blue Ridge and Rocky Ridge, with the settlement of Knoxville serving as a central point for the surrounding industrial activity. Extensive cinnabar or mercury mining is evident through the presence of the Reid Mine, Harrison Mine, Manhattan Mine, and the Red Elephant Mine, reflecting the region's importance to wartime mineral production.
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Map Details
Editions of this 1944 Morgan Valley Map
2 editions found
Other maps of this area
1907 · Colusa
USGS Topo · 1:62,500
1918 · Spring Valley
USGS Topo · 1:31,680
1920 · Venado
USGS Topo · 1:62,500
1924 · Bartlett Springs
USGS Topo · 1:62,500
1924 · Capay
USGS Topo · 1:62,500
1927 · Calistoga
USGS Topo · 1:62,500
1942 · Colusa
USGS Topo · 1:62,500
1942 · Bartlett Springs
USGS Topo · 1:62,500
1942 · St. Helena
USGS Topo · 1:62,500
1943 · Morgan Valley
USGS Topo · 1:62,500