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Old Maps of Keystone, California

Explore 15 old maps of Keystone, spanning from 1916 to today. These high-resolution historic maps reveal how streets, neighborhoods, landmarks, and natural features evolved over time — perfect for genealogy, metal detecting, research, and local history exploration.

What you can do with these maps:

  • See how Keystone changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
  • View detailed metadata: Each map includes creators, publishers, year, scale, and archive source.
  • Overlay maps with satellite & LiDAR: Visualize the past alongside modern tools to explore terrain & human change.
  • Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
  • Access maps your way: View online, download high-res files, or order prints for personal or research use.

Start exploring old maps of Keystone to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Keystone, CA maps

(15)
  1. 1916 Map of Copperopolis
    1916 Map of Copperopolis
    1916 Copperopolis
    1916 Print · USGS
    Calaveras and Stanislaus counties at the height of the early copper and ranching era reveal a landscape of deep canyons and mining outposts. Trace the Sierra Ry of California or locate historic crossings like Reynolds Ferry and the Wilbur-Womble Mine.
    3 unique versions available
  4. 1942 Map of Copperopolis
    1942 Map of Copperopolis
    1942 Copperopolis
    1942 Print · USGS
    The Mother Lode's mining and water heritage is preserved here in the early 1940s, centered on the copper-rich hills and the Stanislaus River. Genealogists and historians can trace family-named sites like Curtin Ranch, old schools such as O'Byrnes School, and active mines including the Wilbur Womble Mine.
  7. 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.
  10. 1954 Map of Copperopolis, 1956 Print
    1954 Map of Copperopolis, 1956 Print
    1954 Copperopolis
    1956 Print · USGS
    The California foothills in the mid-fifties reveal a transition from gold and copper mining to water management along the Stanislaus River. Locate historic sites like Central Ferry and the Napoleon Mine while tracing the Sierra Railroad.
  13. 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.
  16. 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
  19. 1962 Map of Keystone, 1963 Print
    1962 Map of Keystone, 1963 Print
    1962 Keystone
    1963 Print · USGS
    The foothills of Tuolumne and Stanislaus Counties appear here in the early sixties as a landscape of large-scale water projects and cattle ranching. Researchers can trace the path of the Hetch Hetchy Aqueduct and locate family landmarks like the Kistler Ranch or the settlement at Keystone.
    2 unique versions available
  22. 1962 Map of Copperopolis, 1964 Print
    1962 Map of Copperopolis, 1964 Print
    1962 Copperopolis
    1964 Print · USGS
    The foothills of the Mother Lode come alive in the early sixties as mining towns and water projects reshape the landscape. Genealogists and historians can trace family-named sites like Wagner Ranch and Kistler Ranch alongside the historic Sierra Railroad and Knights Ferry crossing.
    2 unique versions available
  25. 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).
  28. 1994 Map of Oakdale, 1995 Print
    1994 Map of Oakdale, 1995 Print
    1994 Oakdale
    1995 Print · USGS
    The San Joaquin Valley meets the Sierra foothills in the mid-1990s, where massive reservoirs and canal networks fueled California's agricultural heartland. Researchers can trace the Hetch Hetchy Aqueduct, find the Sierra RR, and locate the Riverbank Army Ammunition Plant.
    2 unique versions available
  31. 2000 Map of Keystone, 2002 Print
    2000 Map of Keystone, 2002 Print
    2000 Keystone
    2002 Print · USGS
    Tuolumne County's rugged ranchlands and hydraulic engineering are on display in this turn-of-the-millennium survey. Researchers can trace the path of the Hetch Hetchy Aqueduct or locate family landmarks like Burgeson Ranch and the settlement of Keystone.
  34. 2012 Map of Keystone, 2012 Print
    2012 Map of Keystone, 2012 Print
    2012 Keystone
    2012 Print · USGS
    Covers Keystone, including Stanislaus County, Tuolumne County, and other nearby areas
  37. 2015 Map of Keystone, 2015 Print
    2015 Map of Keystone, 2015 Print
    2015 Keystone
    2015 Print · USGS
    Covers Keystone, including Stanislaus County, Tuolumne County, and other nearby areas
  40. 2018 Map of Keystone, 2018 Print
    2018 Map of Keystone, 2018 Print
    2018 Keystone
    2018 Print · USGS
    Covers Keystone, including Stanislaus County, Tuolumne County, and other nearby areas
  43. 2021 Map of Keystone, 2021 Print
    2021 Map of Keystone, 2021 Print
    2021 Keystone
    2021 Print · USGS
    Tuolumne County ranch lands and foothills are captured here in the early twenty-first century, showing the intersection of historic transit and modern infrastructure. You can trace the path of the Hetch Hetchy Aqueduct, find the Kistler Ranch Airport, and locate the settlement of Keystone.
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