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1916 Map of Tracy

Name: 1916 Topographic Map of Tracy
Creator: U.S. Geological Survey
Published: 1928
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1928

About this map

The Tracy junction emerges as a critical rail hub at the transition from the San Joaquin Valley floor to the rising western hills. Published in the late 1920s from earlier surveys, the map illustrates a landscape dominated by the intersection of major transport corridors, including the Southern Pacific (Niles and Sacramento Line) and the Western Pacific. This rail-driven growth is evident at Carbona and Lyoth, where the tracks converge and branch toward the coast and the capital.

Away from the mainline bustle, local landmarks like the Jefferson School and the settlement of Ellis provide a window into the rural life of early 20th-century San Joaquin County. To the southwest, the dramatic topography of Corral Hollow cuts through the rising terrain, marking the drainage from the uplands. This survey, supervised by Geo. R. Davis, captures the precise moment when steam-era rail infrastructure dictated the placement and prosperity of Central Valley communities.