Old Maps of Helm, California for Metal Detecting

Plan your next treasure hunt with 12 historic maps of Helm. 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 Helm.


Helm, CA maps

(12)
  1. 1925 Map of Helm
    1925 Map of Helm
    1925 Helm
    1925 Print · USGS
    The Fresno County valley floor comes into focus during the mid-twenties as an emerging agricultural hub. Researchers can trace the early rail-and-water infrastructure of Helm and Nares, following the Southern Pacific tracks and the Stinson Canal.
    2 unique versions available

  2. 1947 Map of Helm
    1947 Map of Helm
    1947 Helm
    1947 Print · USGS
    The Fresno County plains come alive in the late 1940s, showcasing a landscape of intensive irrigation and early petroleum development. Trace the rail-side community of Helm or locate early drilling sites within the Raisin City Oil Fields and along the Fresno Slough.

  3. 1948 Map of Santa Cruz
    1948 Map of Santa Cruz
    1948 Santa Cruz
    1948 Print · USGS
    The Central Coast and San Joaquin Valley meet in this mid-century look at the region's agricultural and military geography. Genealogists and historians can trace the paths of El Camino Real, locate family farms near Hollister, or study the footprint of the Fort Ord Military Reservation.
    2 unique versions available

  4. 1955 Map of Santa Cruz
    1955 Map of Santa Cruz
    1955 Santa Cruz
    1955 Print · USGS
    Coastal Monterey Bay and the fertile Salinas Valley are captured here during the post-war expansion of the mid-fifties. Researchers can trace the era's rail-and-road network via the Southern Pacific lines and find landmarks like Fort Ord or the Lonoak School.

  5. 1957 Map of Santa Cruz
    1957 Map of Santa Cruz
    1957 Santa Cruz
    1957 Print · USGS
    Central California comes into sharp focus during the late fifties, from the fog-swept Monterey Bay to the sun-drenched San Joaquin Valley. Genealogists and historians can trace the mid-century footprints of Fort Ord Military Reservation, the Southern Pacific line, and the historic streets of San Juan Bautista.

  6. 1958 Map of Santa Cruz
    1958 Map of Santa Cruz
    1958 Santa Cruz
    1958 Print · USGS
    Coastal California and the central valleys are shown during the mid-fifties, capturing a landscape of massive military reserves and vital rail arteries. Genealogists and historians can trace the Southern Pacific line through Salinas or explore the early footprints of the Fort Ord Military Reservation and San Juan Bautista.
    2 unique versions available

  7. 1963 Map of Helm, 1964 Print
    1963 Map of Helm, 1964 Print
    1963 Helm
    1964 Print · USGS
    Agricultural and industrial life in Fresno County comes into focus during the early sixties, centered on the railroad siding at Helm. Researchers can trace the extensive Raisin City Oil Field and the vital water routes of the Fresno Slough.
    2 unique versions available

  8. 1963 Map of Kerman, 1965 Print
    1963 Map of Kerman, 1965 Print
    1963 Kerman
    1965 Print · USGS
    Fresno County's agricultural heartland is documented here in the early sixties as a complex network of irrigation and rail. Researchers can trace the lineage of water and transport through the James Bypass, the Southern Pacific line, and local sites like Traction Ranch or the Raisin City Oil Field.
    2 unique versions available

  9. 1965 Map of Santa Cruz, 1968 Print
    1965 Map of Santa Cruz, 1968 Print
    1965 Santa Cruz
    1968 Print · USGS
    The Central Coast and San Joaquin Valley meet here during the mid-sixties, capturing the growth of agricultural and coastal hubs. Trace the historic Southern Pacific RR lines and locate sites like the Presidio of Monterey or Pinnacles National Monument.

  10. 1974 Map of Monterey, 1977 Print
    1974 Map of Monterey, 1977 Print
    1974 Monterey
    1977 Print · USGS
    The Central Coast and San Joaquin Valley meet in this mid-seventies survey of the Monterey region. Genealogists and historians can locate Spanish-era sites like the San Antonio de Padua Mission, early industrial markers such as the New Idria Mine, and coastal landmarks like the Point Sur Lighthouse.

  11. 1982 Map of Mendota, 1983 Print
    1982 Map of Mendota, 1983 Print
    1982 Mendota
    1983 Print · USGS
    The Central Valley's massive water-moving infrastructure is in full view during the early eighties, from the San Joaquin River to the California Aqueduct. Researchers can trace the Southern Pacific rail lines through towns like Mendota, Firebaugh, and Tranquillity.
    2 unique versions available

  12. 2021 Map of Helm, 2021 Print
    2021 Map of Helm, 2021 Print
    2021 Helm
    2021 Print · USGS
    The agricultural plains of Fresno County come into focus during the early twenty-first century. Researchers can trace the vital water systems of the Central Valley, including the winding Fresno Slough, the James Bypass, and the community of Helm.

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