Loading map...

1948 Map of Newark

Name: 1948 Topographic Map of Newark
Creator: U.S. Geological Survey
Published: 1948
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1948

About this map

The salt marshes and industrial landings of the East Bay shoreline define this 1947 study, capturing a period of transition for southern Alameda County. Industry is heavily represented by the Sugar Refinery at Alvarado and multiple Salt Refinery sites along the San Francisco Bay margin. The landscape is a mix of reclaimed marshland and agricultural tracts, notably the Patterson Ranch and the historical Potrero de los Cerritos land grant area.

Transport networks are dense, featuring both the Southern Pacific and Western Pacific railroads alongside the Hetch Hetchy Aqueduct. Prominent local landmarks such as the Masonic Home near Decoto and the Holy Ghost Cem provide valuable touchpoints for genealogists. The map also detail the intricate slough systems including Coyote Hills Slough and Mowry Slough, which supported historical maritime access points like Plummer Landing and Mowry Landing.