
Pittsburg and West Pittsburg anchor the southern shore of the Sacramento-San Joaquin Delta, where industrial activity and military infrastructure meet a complex network of marshland. The map reveals the critical role of transportation and water management in the mid-20th century, showing the Mokelumne Aqueduct and Contra Costa Canal cutting across the landscape. The industrial footprint is evident in the sprawling Naval Weapons Station Concord and local facilities like the Chemical Plant and nearby Quarry. To the north, a labyrinth of sloughs including Montezuma Slough and Roaring River Slough wind around islands like Wheeler Island and Hammond Island, many protected by levees. This 1953 survey, with later urban revisions, captures the transition of Shore Acres and the surrounding area as residential growth began to press against the historical rail lines of the Southern Pacific and Atchison Topeka and Santa Fe.
60 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
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