1940s Maps of Marin County, California

1. 1941 Map of Tamalpais

   

   1941 Tamalpais

   1941 Print · USGS

   Marin County's coastal defenses and rail-connected towns are captured here just as the nation entered World War II. Researchers can trace the early fortifications at Fort Cronkhite, the path of the Northwestern Pacific RR, and old landmarks like Bolinas School.

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4. 1942 Map of Mare Island

   

   1942 Mare Island

   1942 Print · USGS

   The northern reaches of San Pablo Bay come alive in this wartime survey, showing a landscape of vital naval yards and marshland agriculture. Genealogists and historians can trace rail depots like Napa Junction, rural landmarks like American Canyon School, and the industrial waterfronts of Vallejo and Oleum.

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7. 1942 Map of Sebastopol

   

   1942 Sebastopol

   1942 Print · USGS

   Western Sonoma County comes into focus in the early 1940s, showing a landscape defined by apple orchards and redwood groves. Genealogists can trace family footprints through rural sites like Gold Ridge Sch, the Northwestern Pacific RR line, and Bohemian Grove.

   3 unique versions available

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10. 1942 Map of Petaluma

    

    1942 Petaluma

    1942 Print · USGS

    The Marin and Sonoma county line runs through this early 1940s landscape of tidal marshes and ranch lands. Genealogists can trace family names at Mt Oliver Cemetery or find historic rural institutions like the Olompali School and St Vincent Station.

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13. 1942 Map of Bodega Head, 1956 Print

    

    1942 Bodega Head

    1956 Print · USGS

    The Sonoma coast during the early 1940s reveals a landscape of sheltered harbors and high coastal ridges. Genealogists and historians can trace the foundations of Bodega Bay, locate the Ocean View Sch, and explore landmarks from Arched Rock Beach to Swallow City.

    3 unique versions available

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16. 1944 Map of Bodega Head

    

    1944 Bodega Head

    1944 Print · USGS

    The Sonoma coast at the height of the Second World War shows a landscape of quiet harbors and remote coastal gulches. Researchers can trace the layout of Bodega Bay, locate the Ocean View Sch, and explore the terrain around Mount Roscoe and Swallow City.

    3 unique versions available

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19. 1947 Map of Santa Rosa

    

    1947 Santa Rosa

    1947 Print · USGS

    Northern California in the late 1940s was a landscape of agricultural valleys and vital rail hubs. Trace the historic routes of the Northwestern Pacific through Healdsburg or explore the mid-century waterfronts of Vallejo and Benicia near Mare Island.

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22. 1947 Map of San Francisco, 1948 Print

    

    1947 San Francisco

    1948 Print · USGS

    The Bay Area in the late 1940s reveals a region transitioning from wartime intensity to post-war suburban growth. Trace the historic rail lines of the Southern Pacific RR or locate early military footprints at Fort Funston and Moffett Field.

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25. 1947 Map of San Francisco North, 1955 Print

    

    1947 San Francisco North

    1955 Print · USGS

    San Francisco and the Marin coastline are captured here in the years following World War II, just as the city's modern skyline began to take shape. Researchers can trace historic landmarks like Mission Dolores, early waterfront infrastructure at Mission Rock, and the military outposts of Fort Baker Military Reservation.

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28. 1947 Map of San Quentin, 1956 Print

    

    1947 San Quentin

    1956 Print · USGS

    The San Francisco Bay area in the late 1940s reveals a landscape of ferry-connected shores and burgeoning industry. Trace the historic Richmond-San Rafael Ferry route, the State Penitentiary, and the Tiburon Naval Net Depot.

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31. 1948 Map of San Quentin

    

    1948 San Quentin

    1948 Print · USGS

    The North Bay waterfront comes alive in the late 1940s, showing the active ferry routes and military installations of the era. Genealogists and historians can trace the Richmond-San Rafael Ferry, the State Penitentiary, and the Tiburon Naval Net Depot.

    2 unique versions available

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34. 1948 Map of San Francisco, 1951 Print

    

    1948 San Francisco

    1951 Print · USGS

    The Bay Area in the late 1940s reveals a landscape defined by rapid post-war growth and a heavy military presence at the Golden Gate. Trace the development of early trans-bay infrastructure like the Oakland-Bay Bridge and historic coastal defense sites such as Fort Funston and Alcatraz Island.

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37. 1949 Map of Santa Rosa

    

    1949 Santa Rosa

    1949 Print · USGS

    The North Bay and Wine Country appear here in the late 1940s, when the Northwestern Pacific RR still dominated regional transit. Genealogists and historians can trace old coastal outposts like Anchor Bay Settlement and the early layout of Santa Rosa.

    2 unique versions available

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40. 1949 Map of Mare Island, 1957 Print

    

    1949 Mare Island

    1957 Print · USGS

    The Carquinez Strait and San Pablo Bay waterfronts are captured here during the post-war industrial peak. Researchers can trace historic shorelines and rail lines through Vallejo, the Mare Island Naval Reservation, and early industry at Oleum and Hercules.

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