1940 Map of Pacheco Pass
USGS Topo · Published 1940About this map
The San Luis Gonzaga land grant area defines this 1940 tactical map, where the Diablo Range transitions into the Central Valley. Centered on the crucial crossing at Pacheco Pass, the map details a landscape of cattle ranches and early industrial infrastructure. Major utilities like the Pacific Gas and Electric Co 154 KV and San Joaquin Light and Power Corp 110 KV lines traverse the foothills, marking the expansion of the California power grid.
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Map Details
Editions of this 1940 Pacheco Pass Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1913 · Panoche
USGS Topo · 1:125,000
1917 · Newman
USGS Topo · 1:31,680
1918 · Gustine
USGS Topo · 1:31,680
1919 · Orestimba
USGS Topo · 1:62,500
1919 · Orestimba Creek
USGS Topo · 1:31,680
1919 · Hollister
USGS Topo · 1:48,000
1919 · Ingomar
USGS Topo · 1:31,680
1920 · Pacheco Pass
USGS Topo · 1:62,500
1920 · Carrisalito Spring
USGS Topo · 1:31,680
1921 · Volta
USGS Topo · 1:31,680