1954 Map of Petaluma River

About this map

The Petaluma River winds through a complex network of sloughs and tidal marshes, defining the border between Sonoma and Marin counties. This 1954 survey, updated with 1978 aerial data, captures the industrial and agricultural landscape where the Northwestern Pacific railroad tracks parallel the Redwood Highway. The topography is dominated by the steep ascent of Burdell Mtn and the Petaluma Mts, which overlook the expansive wetlands of Neils Island and Hog Island. Cultural landmarks of the mid-century era are prominent, including the Lakeville Sch, a Drive-in Theater near San Antonio Creek, and the Radio Towers KCBS situated on the marshy flats near Gnoss Field. Local industry is evidenced by Rock Quarries on the western slopes, while the presence of multiple Gun Clubs along the river highlights the importance of the wetlands for seasonal recreation.