The dense suburban corridors of the East Bay converge in this 2015 study, dominated by the heavily developed Ygnacio Valley and the central hub of Walnut Creek. The landscape is a complex network of transit and utility infrastructure, where Interstate 680 and California 24 intersect near Saranap. Critical water management systems such as the Mokelumne Aqueduct and the Contra Costa Canal thread through residential neighborhoods, illustrating the engineering required to sustain these communities.
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This is the sole edition of this map. No revisions or reprints were ever made.
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