1940s Maps of Colusa County, California

1. 1941 Map of Dunnigan

   

   1941 Dunnigan

   1941 Print · USGS

   Yolo and Sutter counties are captured here in the early 1940s, showing a landscape defined by the shifting Sacramento River and the Southern Pacific rail line. Trace the history of river commerce at Rough and Ready Landing or locate family roots in Zamora Blacks Station P O and Dunnigan.

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4. 1942 Map of Butte Sink

   

   1942 Butte Sink

   1942 Print · USGS

   Northern California's agricultural heartland is documented here during the early war years, showing the intersection of four counties. Researchers can locate family landmarks like Marvin Chapel and trace the rural school system at Harmony Sch and Butte Sch.

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7. 1942 Map of Colusa

   

   1942 Colusa

   1942 Print · USGS

   Colusa County at the start of the 1940s reveals a highly engineered agricultural landscape defined by vital rail lines and irrigation works. Genealogists and local historians can trace the development of Williams, the rural Central Sch, and smaller sidings like Cortena and Delphos along the Southern Pacific.

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10. 1942 Map of Bartlett Springs

    

    1942 Bartlett Springs

    1942 Print · USGS

    Lake County and the rugged North Coast Ranges are captured here in the early 1940s, balancing resort springs with hardscrabble ranching. Genealogists can locate family landmarks like Garner Ranch, the East Lake Sch, and the isolated Bartlett Springs resort.

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13. 1943 Map of Morgan Valley

    

    1943 Morgan Valley

    1943 Print · USGS

    Northern California ranching and mining country are captured in the early 1940s at the junction of Lake, Napa, and Yolo counties. Researchers can locate the Morgan Valley Sch and several mines like the Harrison Mine and Red Elephant Mine.

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16. 1943 Map of Lodoga

    

    1943 Lodoga

    1943 Print · USGS

    The foothills of the Sacramento Valley were undergoing a transformation during the 1940s as irrigation reached the plains. Researchers can locate the settlement of Sites, the Black Mtn Sch, and early fruit production at Mills Orchards.

    2 unique versions available

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19. 1944 Map of Bartlett Springs

    

    1944 Bartlett Springs

    1944 Print · USGS

    Lake County at the height of the war years reveals a landscape of isolated springs and family-run ranches nestled along the high ridges. Researchers can trace historic homesteads like the Garner Ranch, the site of Bartlett Springs, and the East Lake Sch near the Clear Lake shoreline.

    2 unique versions available

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22. 1944 Map of Wilbur Springs

    

    1944 Wilbur Springs

    1944 Print · USGS

    Northern California mining country comes to life in this mid-forties survey of the Coast Ranges. Researchers can trace the quicksilver industry through sites like Abbott Mine and locate rural family history at Leesville or the Huffmaster Ranch.

    3 unique versions available

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25. 1944 Map of Morgan Valley

    

    1944 Morgan Valley

    1944 Print · USGS

    Upper California ranching and mercury mining country are shown here in the mid-1940s near the corner of Lake, Colusa, and Napa counties. Researchers can trace historic operations like Reid Mine, the old Morgan Valley Sch, and local hubs like Knoxville.

    2 unique versions available

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28. 1945 Map of Rumsey

    

    1945 Rumsey

    1945 Print · USGS

    The Capay Valley and northern Sacramento Valley meet here in the mid-1940s, showing a landscape of secluded canyons and rail-side settlements. Genealogists can trace family footprints near Rumsey, Guinda, and rural schoolhouses like Wildwood Sch.

    2 unique versions available

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31. 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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34. 1947 Map of Sacramento, 1948 Print

    

    1947 Sacramento

    1948 Print · USGS

    The Sacramento Valley meets the high Sierra during a period of post-war expansion. Trace the historic river delta islands like Grand Island or locate early airfield footprints at McClellan Air Force Base and Mather Air Force Base.

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37. 1948 Map of Sacramento, 1951 Print

    

    1948 Sacramento

    1951 Print · USGS

    Post-war Northern California comes alive in this regional survey, capturing the era of expansion between the Central Valley and the High Sierra. Researchers can trace the rail networks of the Central California Traction and Sacramento Northern RR or locate landmarks like the State Capitol and University of California Davis.

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40. 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.

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