
San Ramon Village and Dublin emerge as growing suburban centers in this mid-century topographic record, which documents the rapid transformation of the Amador Valley. While the western hills remain dominated by named canyons like Koopman Canyon and Hollis Canyon, the valley floor shows significant institutional and infrastructure development. The massive Camp Parks military reservation and the Santa Rita Rehabilitation Center occupy large tracts of land, while the Southern Pacific and Western Pacific railroads continue to shape the local transportation corridor. Local life is visible in the placement of the Murray Sch, the Drive-in Theater, and the Golf Course near the town center. The landscape is also defined by its hydrological network, including the Arroyo de la Laguna and Arroyo Mocho, which provided critical drainage for the developing settlements and the nearby USDA Plant Materials Center at the edge of Pleasanton.
69 named features on this map. Tap any name to fly to it.
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10 editions found
1896 · Mt. Diablo
USGS Topo · 1:62,500
1897 · Concord
USGS Topo · 1:62,500
1898 · Mt. Diablo
USGS Topo · 1:62,500
1899 · Haywards
USGS Topo · 1:62,500
1906 · Pleasanton
USGS Topo · 1:62,500
1915 · Haywards
USGS Topo · 1:62,500
1915 · Concord
USGS Topo · 1:62,500
1941 · Pleasanton
USGS Topo · 1:62,500
1942 · Concord
USGS Topo · 1:62,500
1942 · Hayward
USGS Topo · 1:62,500