
The boundary between Alameda and San Joaquin Counties cuts through this landscape of deep ravines and critical water infrastructure during a period of significant regional expansion. The map documents the sites of once-vibrant industrial settlements, including the Tesla, Pottery, and Carnegie locations along Corral Hollow Road, where coal and clay were once extracted. These historic nodes contrast with the massive civil engineering projects that came to define the area's modern role, specifically the Delta-Mendota Canal and the later addition of the California Aqueduct. Transportation remains a dominant theme, from the established tracks of the Southern Pacific and Western Pacific railroads to the modern development of the Altamont Speedway and the early stages of major road construction at Altamont Pass.
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6 editions found
1907 · Tesla
USGS Topo · 1:62,500
1911 · Byron Hot Springs
USGS Topo · 1:31,680
1914 · Bethany
USGS Topo · 1:31,680
1914 · Union Island
USGS Topo · 1:31,680
1916 · Byron Hot Springs
USGS Topo · 1:31,680
1916 · Byron
USGS Topo · 1:62,500
1916 · Tracy
USGS Topo · 1:31,680
1916 · Midway
USGS Topo · 1:31,680
1922 · Carbona
USGS Topo · 1:62,500
1940 · Byron
USGS Topo · 1:62,500