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Old Maps of Coloma, California for Metal Detecting

Plan your next treasure hunt with 12 historic maps of Coloma. Find old homesites, ghost towns, trails, and gathering spots that may be lost to time — perfect for identifying promising metal detecting locations.

  • Locate forgotten sites: Uncover places like long-lost settlements, abandoned rail lines, or gathering spots.
  • Plan better hunts: Use map overlays combined with LiDAR or satellite views to narrow in on historically rich areas.
  • Made for detectorists: Thousands of hobbyists use these maps to discover relics, coins, and hidden history.

Use these historic maps to boost your research and find new opportunities beneath the surface of Coloma.

Coloma, CA maps

(12)
  1. 1891 Map of Placerville
    1891 Map of Placerville
    1891 Placerville
    1891 Print · USGS
    El Dorado County was a thriving network of mining camps and timber mills in the 1890s. Genealogists can trace family roots through old landmarks like Diamond Springs, Coloma, and the Placerville and Sacramento Railroad.
  4. 1892 Map of Placerville
    1892 Map of Placerville
    1892 Placerville
    1892 Print · USGS
    El Dorado County is documented during the late nineteenth-century mining era, showing the rugged network of river canyons and early mountain roads. Researchers can trace the Sacramento and Placerville Railroad or locate historic sites like the Mile Hill Toll House and Spanish Diggings.
  7. 1893 Map of Placerville
    1893 Map of Placerville
    1893 Placerville
    1893 Print · USGS
    El Dorado and Placer counties during the late nineteenth-century mining era reveal a landscape of deep canyons and booming industrial camps. Genealogists and historians can trace the Sacramento and Placerville Railroad to its terminus or locate early operations like Mammoth Mine and Spanish Diggings.
    9 unique versions available
  10. 1947 Map of Sacramento, 1948 Print
    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.
    2 unique versions available
  13. 1948 Map of Sacramento, 1951 Print
    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.
  16. 1949 Map of Georgetown
    1949 Map of Georgetown
    1949 Georgetown
    1949 Print · USGS
    El Dorado County’s gold country is captured here during the late 1940s, showcasing a landscape shaped by a century of mining. Researchers can trace historic sites like the Sutters Mill Site, Spanish Dry Diggings, and the Uniontown Cem.
    5 unique versions available
  19. 1949 Map of Coloma, 1956 Print
    1949 Map of Coloma, 1956 Print
    1949 Coloma
    1956 Print · USGS
    El Dorado County’s historic gold-producing region is documented here in the mid-twentieth century. Local historians can trace the legacy of the 1848 discovery at Sutters Mill and find landmarks like the Lilyama Mine, Springvale School, and Uniontown Cem.
    6 unique versions available
  22. 1950 Map of Coloma
    1950 Map of Coloma
    1950 Coloma
    1950 Print · USGS
    The Gold Rush heartland comes into focus mid-century as the historic river towns maintain their identity. Trace family roots and mining claims near the Sutters Mill (Site), the Lilyama Mine, and the Johntown Cem.
  25. 1956 Map of Sacramento
    1956 Map of Sacramento
    1956 Sacramento
    1956 Print · USGS
    Mid-century California unfolds from the delta to the high Sierra, capturing a landscape of growing valley cities and burgeoning military airbases. Genealogists and historians can trace the rail lines and river towns from Woodland to Lodi, or explore the foothill settlements of Placerville and Jackson.
    2 unique versions available
  28. 1957 Map of Sacramento, 1966 Print
    1957 Map of Sacramento, 1966 Print
    1957 Sacramento
    1966 Print · USGS
    In the mid-twentieth century, the California heartland was a hub of river transport, rail lines, and military airbases. Genealogists and historians can trace the development of Gold Country towns like Angels Camp and Sonora or follow the path of the Southern Pacific RR through the growing suburbs of Sacramento.
    4 unique versions available
  31. 1976 Map of Placerville, 1994 Print
    1976 Map of Placerville, 1994 Print
    1976 Placerville
    1994 Print · USGS
    El Dorado County and the high Sierra Nevada are captured in the mid-seventies, showing the evolution of the Mother Lode from its mining roots to a modern recreational and timber hub. Genealogists can locate family names and old landmarks like Old Fort Jim, the Shingle Springs Indian Reservation, and the historic town of Fiddletown.
    2 unique versions available
  34. 2021 Map of Coloma, 2021 Print
    2021 Map of Coloma, 2021 Print
    2021 Coloma
    2021 Print · USGS
    Coloma and the American River canyon are shown here in modern detail, preserving the landmarks of the California Gold Rush. Genealogists can trace family burial sites at Saint John's Catholic Cem or visit the James Marshall Monument Grave.
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