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1915 Map of Concord

Name: 1915 Topographic Map of Concord
Creator: U.S. Geological Survey
Published: 1939
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1939

About this map

The hills and valleys of Contra Costa County are deeply etched into this early 20th-century topography, showing the East Bay landscape before the expansion of suburban development. Large land grants such as Boca de la Canada del Pinole and Laguna de los Palos Colorados dominate the interior, their boundaries often following the ridgelines of the Briones Hills and Lafayette Ridge.

Settlement is concentrated along the rail corridors, with the Southern Pacific RR linking stations at Concord, Walnut Creek, and Danville. Higher elevations are punctuated by landmarks like Grizzly Peak and Round Top, while the southern reaches show the emerging street grid of Oakland near Mills College. The presence of small, named stops such as Hookston, Glen Frazer, and Meinert highlights the rural, rail-dependent nature of the region during this era of agricultural transition.