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1959 Map of Petaluma Point

Name: 1959 Topographic Map of Petaluma Point
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

San Pablo Bay dominates this coastal survey, where the marshy northern reaches of the San Francisco Bay system meet the inland drainage of the Petaluma River. The landscape is defined by its complex shoreline, characterized by expansive Mud flats and protective Levee systems that delineate Tubbs Island and Day Island. Along the western shore, the infrastructure of Hamilton Air Force Base stands as a prominent feature, its runways and facilities positioned just inland from the bay.

Transportation corridors of the late 1950s are clearly marked, including the Northwestern Pacific railroad corridor passing through Black Point. At the southern edge of the map, the historical coastal settlement of China Camp and the prominent heights of San Pedro Santa Margarita y Las Gallinas offer a glimpse into the topographical variety of the Marin coastline before extensive late-century development altered the character of the bay's edge.