Old Maps of Spadra, Pomona for Metal Detecting

Plan your next treasure hunt with 17 historic maps of Spadra. 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 Spadra.


Spadra, Pomona maps

(17)
  1. 1894 Map of Pomona, 1960 Print
    1894 Map of Pomona, 1960 Print
    1894 Pomona
    1960 Print · USGS
    The eastern San Gabriel Valley is shown here in the 1890s, when the orchard economy and railroads were first reshaping the landscape. Genealogists and historians can trace early settlements and rail stops like Lordsburg, Alosta, and Rowland Siding.

  2. 1897 Map of Pomona
    1897 Map of Pomona
    1897 Pomona
    1897 Print · USGS
    The San Gabriel Valley is captured here in the late nineteenth century as a patchwork of citrus-growing colonies and emerging rail towns. Genealogists and historians can trace early property lines and settlements like Lordsburg, Alosta, and Spadra along the Covina Branch line.

  3. 1898 Map of Pomona
    1898 Map of Pomona
    1898 Pomona
    1898 Print · USGS
    The San Gabriel Valley is captured here during its late nineteenth-century rail boom, before the suburban expansion of the Los Angeles basin. Genealogists can trace the early streets of Pomona, Lordsburg, and San Dimas along the busy Southern Pacific Railroad.
    2 unique versions available

  4. 1901 Map of Southern California Sheet No. 1
    1901 Map of Southern California Sheet No. 1
    1901 Southern California Sheet No. 1
    1901 Print · USGS
    Greater Los Angeles at the dawn of the twentieth century is a landscape of growing citrus towns and a burgeoning rail network. Genealogists and historians can trace the early gridded streets of Hollywood and Pasadena or locate landmarks like Bear Lake and the Cahuilla Indian Reservation.
    6 unique versions available

  5. 1904 Map of Pomona
    1904 Map of Pomona
    1904 Pomona
    1904 Print · USGS
    The eastern San Gabriel Valley is shown here at the turn of the century as a burgeoning network of citrus towns and vital rail lines. Genealogists can trace early homesteads and vanished stops such as Lordsburg, Alosta, and the Rowland Siding along the Southern Pacific RR.
    7 unique versions available

  6. 1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Southern California Sheet No. 1
    1905 Print · USGS
    Southern California at the dawn of the twentieth century shows a landscape of citrus groves and coastal towns connected by rail. Genealogists and historians can trace early settlements like San Juan Capistrano, find remote sites like the Rose Mine, and study the original water systems of the Santa Ana River.
    2 unique versions available

  7. 1927 Map of Covina
    1927 Map of Covina
    1927 Covina
    1927 Print · USGS
    The eastern San Gabriel Valley was a thriving agricultural and transit hub in the 1920s, dominated by orchards and sprawling ranch lands. Genealogists can trace family roots through settlements like Covina, the Diamond Bar Ranch, and the Protestant Home for Boys.
    3 unique versions available

  8. 1953 Map of San Bernardino
    1953 Map of San Bernardino
    1953 San Bernardino
    1953 Print · USGS
    Southern California underwent massive post-war growth as suburban sprawl reached the foothills of the San Bernardino Mountains. Genealogists and historians can trace the rail-and-road roots of the Inland Empire through the Union Pacific RR and Lake Arrowhead resorts.
    2 unique versions available

  9. 1954 Map of San Dimas, 1956 Print
    1954 Map of San Dimas, 1956 Print
    1954 San Dimas
    1956 Print · USGS
    Eastern Los Angeles County appears at a moment of transition in the mid-fifties as suburban growth begins to surround the area's agricultural roots. Researchers can trace historic schools and cemeteries, from Evergreen Cemetery to the Naval Ordnance Plant and Diamond Bar Ranch.
    2 unique versions available

  10. 1956 Map of San Bernardino
    1956 Map of San Bernardino
    1956 San Bernardino
    1956 Print · USGS
    Southern California's Inland Empire and High Desert come into focus in the mid-fifties as agriculture gives way to suburban and military growth. Trace early rail lines like the Pacific Electric or find remote landmarks like Camp Rock Mine and George AFB.

  11. 1957 Map of San Bernardino
    1957 Map of San Bernardino
    1957 San Bernardino
    1957 Print · USGS
    Southern California's Inland Empire and High Desert met during the postwar expansion of the late fifties. Genealogists and historians can trace the growth of San Bernardino and Redlands alongside remote landmarks like Edwards AFB and the Camp Rock Mine.

  12. 1958 Map of San Bernardino, 1975 Print
    1958 Map of San Bernardino, 1975 Print
    1958 San Bernardino
    1975 Print · USGS
    Southern California’s Inland Empire and High Desert come into focus during the mid-century boom, showing the rise of suburbs and massive military installations. Researchers can trace the rail networks of the Union Pacific RR or locate landmarks like Norton AFB and Big Bear Lake.

  13. 1959 Map of San Bernardino
    1959 Map of San Bernardino
    1959 San Bernardino
    1959 Print · USGS
    Southern California underwent a massive transformation in the late fifties as suburban growth and military power reshaped the desert and valley. Researchers can trace the legacy of the Union Pacific Railroad and locate early footprints of Joshua Tree National Monument and Edwards Air Force Base.

  14. 1966 Map of San Bernardino
    1966 Map of San Bernardino
    1966 San Bernardino
    1966 Print · USGS
    The San Bernardino Valley and Mojave Desert met during a period of massive military and suburban growth in the mid-sixties. Genealogists and historians can trace the development of Edwards Air Force Base, old desert mines like the Bagdad Chase Mine, and mountain communities near Big Bear Lake.

  15. 1966 Map of San Dimas, 1967 Print
    1966 Map of San Dimas, 1967 Print
    1966 San Dimas
    1967 Print · USGS
    The San Gabriel Valley suburbs were expanding rapidly in the mid-sixties, encircling the high ground of the San Jose Hills. Genealogists and researchers can trace the institutional growth of the era at Cal Poly, Pacific State Hospital, and Sacred Heart Ch.
    4 unique versions available

  16. 1982 Map of San Bernardino, 1983 Print
    1982 Map of San Bernardino, 1983 Print
    1982 San Bernardino
    1983 Print · USGS
    The Inland Empire and San Gabriel Valley met at a peak of suburban and industrial expansion in the early eighties. Researchers can trace the massive rail infrastructure through Cajon Pass and locate landmarks like Norton Air Force Base or the Fontana International Raceway.

  17. 2021 Map of San Dimas, 2021 Print
    2021 Map of San Dimas, 2021 Print
    2021 San Dimas
    2021 Print · USGS
    The San Gabriel Valley comes into focus in the early 2020s, showing the dense suburban development between the South Hills and Puente Hills. Researchers can trace institutional footprints from University of La Verne to Spadra Cem and Brackett Field.

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