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1940s Maps of Mendocino County, California

Explore 22 historic maps of Mendocino County from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.

Whether you're researching your family's past, planning a metal detecting trip, or studying how Mendocino County's landscape evolved across the 1940s, these high-resolution maps are a powerful tool for exploring the history of this region.

  • Focus on a specific era: All maps on this page are from the 1940s, giving you a focused view of this time period.
  • See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
  • Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
  • View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.

Start exploring Mendocino County's history through authentic maps from the 1940s. This is your window into the past.

Mendocino County, CA maps

(22)
  1. 1942 Map of Willits, 1956 Print
    1942 Map of Willits, 1956 Print
    1942 Willits
    1956 Print · USGS
    Willits and the surrounding Mendocino County ranchlands are captured here during the early 1940s as the railroad fueled local growth. Genealogists and historians can trace family landholdings and rural landmarks from Ridgewood Ranch to the Hearst Sch and Sylvandale.
  4. 1943 Map of Point Arena
    1943 Map of Point Arena
    1943 Point Arena
    1943 Print · USGS
    The Mendocino coast in the early 1940s reveals a landscape of isolated ranching and seafaring communities. Genealogists and local historians can trace family holdings from the Iverson Indian Rancheria to the Bourns Family Cem and the Seaside School.
    2 unique versions available
  7. 1943 Map of Glenblair
    1943 Map of Glenblair
    1943 Glenblair
    1943 Print · USGS
    Coastal Mendocino County timberlands and rail corridors are captured here during the 1940s, highlighting the region's logging legacy. Researchers can trace family ranch sites and remote camps like Irmulco, Northspur, and the Mendocino Lumber Co Ranch along the rail lines.
    2 unique versions available
  10. 1943 Map of Fort Bragg
    1943 Map of Fort Bragg
    1943 Fort Bragg
    1943 Print · USGS
    Mendocino County's coastal timber and fishing hubs are captured here during the early 1940s. Researchers can trace the Caspar South Fork Railroad and explore early layouts of Fort Bragg, Mendocino, and the Heeser Addition.
    2 unique versions available
  13. 1943 Map of Albion
    1943 Map of Albion
    1943 Albion
    1943 Print · USGS
    Coastal Mendocino County is mapped during the early 1940s, showing the intersection of the timber-rich hills and the rocky shoreline. Trace early settlements like Albion and Handley, and locate landmarks along the Navarro River and Navarro Ridge Road.
    2 unique versions available
  16. 1943 Map of Pomo, 1954 Print
    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.
  19. 1943 Map of Boonville, 1954 Print
    1943 Map of Boonville, 1954 Print
    1943 Boonville
    1954 Print · USGS
    Mendocino County's ranching and timber heartland is captured here during the 1940s, focused on the Anderson Valley settlements. Genealogists and researchers can trace family-named sites like Whipple Ranch and Hagemann Ranch, along with several rural schoolhouses such as Con Creek Sch.
  22. 1943 Map of Navarro, 1954 Print
    1943 Map of Navarro, 1954 Print
    1943 Navarro
    1954 Print · USGS
    Coastal Mendocino County during the early war years reveals a rugged timber and ranching economy along the Pacific shore. Genealogists and local historians can trace family landmarks like the Galletti Ranch, small rural school sites such as Signal Sch, and maritime history at Bridgeport Landing.
    3 unique versions available
  25. 1943 Map of Kelseyville, 1959 Print
    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.
  28. 1943 Map of Hopland, 1960 Print
    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.
  31. 1943 Map of Ornbaun, 1961 Print
    1943 Map of Ornbaun, 1961 Print
    1943 Ornbaun
    1961 Print · USGS
    Northern California ranching and early resort history are documented here in the early 1940s along the Mendocino-Sonoma border. Genealogists can trace family holdings like Zeni Ranch and Rickard Ranch or locate the site of the Old Ornbaun Hot Springs.
  34. 1944 Map of Ukiah
    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.
  37. 1944 Map of Willits
    1944 Map of Willits
    1944 Willits
    1944 Print · USGS
    Mendocino County's interior rail and ranching corridors are captured in the 1940s as the timber industry shaped the landscape around Willits. Genealogists and historians can trace family-named holdings like Ridgewood Ranch and Berry, or follow the path of the Northwestern Pacific railroad.
  40. 1944 Map of Saddle Point
    1944 Map of Saddle Point
    1944 Saddle Point
    1944 Print · USGS
    Coastal Mendocino County is captured here in the mid-1940s, showing a landscape of maritime landings and upland ranches. Genealogists can trace family holdings like Gallatti Ranch and Williams Ranch or locate vanished rural schoolhouses such as Signal School and Hansen School.
  43. 1944 Map of Ornbaun
    1944 Map of Ornbaun
    1944 Ornbaun
    1944 Print · USGS
    Coastal range ranching and timber lands are documented here in the mid-1940s at the Mendocino and Sonoma border. Researchers can trace historic family holdings like the Ornbaun Ranch, the Old Red Rock Place, and the remote Helvetian Gun Club.
  46. 1944 Map of Hopland
    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.
  49. 1947 Map of Santa Rosa
    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.
  52. 1949 Map of Santa Rosa
    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
  55. 1949 Map of Eureka
    1949 Map of Eureka
    1949 Eureka
    1949 Print · USGS
    Coastal Northern California in the late 1940s shows a landscape of timber towns and maritime outposts. You can trace the Northwestern Pacific rail line through Eureka or locate family landmarks like the Tyson Chrome Mine and Crescent City Lighthouse.
    2 unique versions available
  58. 1949 Map of Alderpoint, 1955 Print
    1949 Map of Alderpoint, 1955 Print
    1949 Alderpoint
    1955 Print · USGS
    Humboldt County ranching and timber life are captured here in the late 1940s as the railroad follows the winding Eel River. Researchers can trace old family holdings like Ware Ranch and Marr Ranch or locate the site of the Harris PO and Fort Seward.
    3 unique versions available
  61. 1949 Map of Point Delgada, 1958 Print
    1949 Map of Point Delgada, 1958 Print
    1949 Point Delgada
    1958 Print · USGS
    Coastal Humboldt County is seen here just after the war, showing the dramatic interface of the King Range and the sea. Researchers can trace the early layout of Shelter Cove and its Airstrip, or locate Oil Wells and the remote settlement of Honeydew.
    2 unique versions available
  64. 1949 Map of Garberville, 1963 Print
    1949 Map of Garberville, 1963 Print
    1949 Garberville
    1963 Print · USGS
    The South Fork Eel River canyon in the late 1940s was the heart of Humboldt's redwood country. Researchers can trace the mid-century development of Garberville, find the Oakdale Sch, and locate old settlements like Briceland and Ettersburg before modern growth.
    3 unique versions available
End of results
Showing maps 1-22 of 22

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