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1900s (20th Century) Maps of Ayers Ranch, Contra Costa County

Explore 7 historic maps of Ayers Ranch from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — 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 Ayers Ranch's landscape evolved across the 1900s, 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 1900s, 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 Ayers Ranch's history through authentic maps from the 1900s. This is your window into the past.

Ayers Ranch, Contra Costa County maps

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  1. 1943 Map of Mt. Diablo
    1943 Map of Mt. Diablo
    1943 Mt. Diablo
    1943 Print · USGS
    The Mt. Diablo foothills and San Ramon Valley are captured here during the early 1940s, showcasing a landscape of cattle ranches and remote schoolhouses. Genealogists and local historians can locate early landmarks like Blackhawk Ranch, Cowell, and the Morgan Territory Sch.
  4. 1947 Map of San Jose, 1948 Print
    1947 Map of San Jose, 1948 Print
    1947 San Jose
    1948 Print · USGS
    Northern California's heartland is captured here just after the war, showing the rapid growth of the Santa Clara and Central Valleys. Researchers can trace the legacy of rail and water at Castle Air Force Base, Stockton, and the Hetch Hetchy Aqueduct.
  7. 1953 Map of Clayton, 1955 Print
    1953 Map of Clayton, 1955 Print
    1953 Clayton
    1955 Print · USGS
    The foothills of Mount Diablo are captured here in the mid-fifties as the ranching and mining landscape began to meet suburban growth. Genealogists and historians can locate the Cowell Cemetery, the Mt Diablo Mine, and the vanished settlement at Nortonville.
    9 unique versions available
  10. 1956 Map of San Jose
    1956 Map of San Jose
    1956 San Jose
    1956 Print · USGS
    Central California in the mid-fifties reveals the transition from sprawling orchards to growing urban hubs like San Jose and Stockton. Genealogists and historians can trace the rail-era landscape of the Mother Lode through Chinese Camp and Tuttletown, or follow the water through the Joaquin River and Calaveras Reservoir.
  13. 1962 Map of San Jose
    1962 Map of San Jose
    1962 San Jose
    1962 Print · USGS
    Central California in the early sixties showcases the expansion of the San Joaquin and Santa Clara valleys. Researchers can trace the rail-to-road transition along the Southern Pacific RR or locate landmarks like Castle USAF Base and Loma Prieta.
    4 unique versions available
  16. 1966 Map of San Jose
    1966 Map of San Jose
    1966 San Jose
    1966 Print · USGS
    Central California in the mid-1960s reveals a landscape of massive irrigation projects and expanding Cold War military footprints. Researchers can trace the rail-and-river network of the San Joaquin Valley or locate specialized sites like Castle Air Force Base and the Sharp General Depot (Military).
  19. 1989 Map of Stockton
    1989 Map of Stockton
    1989 Stockton
    1989 Print · USGS
    During the late 1980s, the California Delta and San Joaquin Valley saw a massive convergence of water infrastructure and military logistics. Researchers can trace the sprawling Lawrence Livermore Laboratory (Univ of Calif) and Sharpe Army Depot alongside the complex waterways of Union Island and Victoria Island.
    2 unique versions available
End of results
Showing maps 1-7 of 7

Frequently asked questions

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  • Are there historical topographic maps available for Ayers Ranch?
  • Is there historical aerial imagery available for Ayers Ranch?
  • Where are historical maps of Ayers Ranch sourced from?