
The expanding suburbs of the East Bay dominate this mid-century topographic record, showing the rapid post-war growth of Concord, Walnut Creek, and Pleasant Hill. The map documents a complex infrastructure network including the Contra Costa Canal and the Mokelumne Aqueduct, essential for the region's development. While residential neighborhoods are spreading into the Clayton Valley, industrial and transit footprints remain visible through the Southern Pacific and Sacramento Northern rail lines.
68 named features on this map. Tap any name to fly to it.
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7 editions found
1896 · Carquinez Strait
USGS Topo · 1:62,500
1896 · Mt. Diablo
USGS Topo · 1:62,500
1897 · Concord
USGS Topo · 1:62,500
1898 · Karquines
USGS Topo · 1:62,500
1898 · Mt. Diablo
USGS Topo · 1:62,500
1901 · Karquines
USGS Topo · 1:62,500
1902 · Napa
USGS Topo · 1:125,000
1907 · Antioch
USGS Topo · 1:62,500
1908 · Antioch
USGS Topo · 1:62,500
1915 · Concord
USGS Topo · 1:62,500