
The hills and canyons of Contra Costa and Alameda counties show a mix of rapid post-war suburban growth and protected open space at the end of the 1950s. Urban centers like Concord, Walnut Creek, and Oakland expand into the valleys, while the ridges of Briones Hills and Las Trampas Ridge remain largely undeveloped. The transportation network is in transition, featuring established rail lines like the Southern Pacific and the Sacramento Northern alongside newer corridors such as the Nimitz Freeway and Warren Blvd.
89 named features on this map. Tap any name to fly to it.
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2 editions found
1892 · San Mateo
USGS Topo · 1:62,500
1895 · San Francisco
USGS Topo · 1:62,500
1896 · San Mateo
USGS Topo · 1:62,500
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
1899 · San Francisco
USGS Topo · 1:62,500
1899 · Haywards
USGS Topo · 1:62,500