1940s Maps of Lake County, California

1. 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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4. 1942 Map of St. Helena, 1966 Print

   

   1942 St. Helena

   1966 Print · USGS

   Napa County during the early 1940s is defined by its rural school districts and the emerging institutional centers of the Howell Mountain area. Genealogists can trace family footprints through the Silverado Trail, the Aetna Mine, and small schools like Hardin Sch.

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7. 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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10. 1943 Map of Pomo, 1954 Print

    

    1943 Pomo

    1954 Print · USGS

    Mendocino County's ranching and irrigation landscapes are captured here during the 1940s, showcasing the development of Potter Valley. Genealogists and historians can locate family lands like Mewhinney Ranch alongside the Pomo Indian Reservation and the Emandale Resort.

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13. 1943 Map of Calistoga, 1955 Print

    

    1943 Calistoga

    1955 Print · USGS

    Upper Napa Valley and the rugged Lake County border are captured here during the 1940s, a period defined by mercury mining and early tourism. Researchers can trace family-named landmarks and industrial sites like the Oat Hill Mine, Mark West Springs, and the Petrified Forest.

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16. 1943 Map of Kelseyville, 1959 Print

    

    1943 Kelseyville

    1959 Print · USGS

    In the early 1940s, this region of Lake and Sonoma counties was a mosaic of active ranching and mountain retreats. Researchers can trace family-named lands like Fifield Ranch, locate the Socrates Mine, or find the historic Geyser Resort and Mountain School.

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19. 1943 Map of Hopland, 1960 Print

    

    1943 Hopland

    1960 Print · USGS

    Mendocino County ranching and the Russian River valley are captured here in the early 1940s as the rail and road networks matured. Researchers can trace family-named lands like McDowell Ranch, the Nacomis Indian Rancheria, and the operations at Thorn Siding.

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22. 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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25. 1944 Map of Ukiah

    

    1944 Ukiah

    1944 Print · USGS

    The Russian River valley in the mid-1940s is a landscape of established ranching, tribal lands, and the vital Northwestern Pacific rail line. Researchers can locate family landmarks like Bartlett Ranch, the McNear School, and several tribal areas including Ukiah Rancheria.

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28. 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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31. 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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34. 1944 Map of Hopland

    

    1944 Hopland

    1944 Print · USGS

    The Russian River valley in the 1940s was a landscape of remote ranches and rail sidings on the Mendocino-Sonoma border. Researchers can trace the Northwestern Pacific Railroad through Pieta, find the old McDonald School, or locate the Nacomis Indian Rancheria.

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37. 1945 Map of Calistoga

    

    1945 Calistoga

    1945 Print · USGS

    Calistoga and the surrounding tri-county ridges are documented here during the mid-forties, capturing a landscape defined by mercury and silver mining. Researchers can trace the Southern Pacific RR and locate rural landmarks like the Silverado Mine or Mark West Springs.

    2 unique versions available

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40. 1945 Map of St. Helena

    

    1945 St. Helena

    1945 Print · USGS

    Napa County at the end of the war shows a landscape of growing valley towns, mountain colleges, and rural mining outposts. Researchers can trace the path of the Southern Pacific RR or locate family roots near Central Sch and the Aetna Mine.

    2 unique versions available

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43. 1945 Map of Lower Lake

    

    1945 Lower Lake

    1945 Print · USGS

    Lake County's famous resort and mercury-mining districts are shown in high detail during the mid-1940s. Researchers can locate vanished structures at Hould Gibson Camp, trace the namesake springs at Anderson Springs, and find rural institutions like Cobb Valley Sch.

    2 unique versions available

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46. 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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49. 1948 Map of Elk Creek

    

    1948 Elk Creek

    1948 Print · USGS

    The eastern edges of the Mendocino National Forest come into focus in the late 1940s, showing a rugged transition between ranchland and timber. Researchers can trace historic family holdings like El Manzano Rancho, the Grindstone Rancheria Indian Res, and the waters of Stony Gorge Reservoir.

    2 unique versions available

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52. 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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