1954 Map of Tracy

About this map

The growing city of Tracy sits at a critical infrastructure junction where the San Joaquin Valley meets the foothills of the Diablo Range. The landscape is defined by massive water engineering projects, including the California Aqueduct, the Delta-Mendota Canal, and the Hetch Hetchy Aqueduct, which cut through the terrain alongside the older Main Canal system. This 1954 survey, updated with purple urban expansions from 1968, illustrates a transition from the industrial and military activity at the Sharpe General Depot (Tracy Annex) to the rugged southern topography of Black Butte and Castle Rock. Transportation networks are prominent, with the Southern Pacific and Western Pacific railroads converging near settlements like Carbona and Lyoth. Local history is preserved in details such as the Tracy Cem and the Brichetto Tomb, while the presence of a Manganese Mill and several gravel pits indicates the area's mid-century extractive industry.