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Old Maps of Tracy, California for Metal Detecting

Plan your next treasure hunt with 21 historic maps of Tracy. 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 Tracy.

Tracy, CA maps

(21)
  1. 1907 Map of Tesla
    1907 Map of Tesla
    1907 Tesla
    1907 Print · USGS
    The industrial corridor of Corral Hollow comes to life in this early 1900s survey of the Alameda and San Joaquin border. Genealogists and historians can trace now-quiet locations like Tesla, Pottery, and the Sweet Springs Halfway House along the winding mountain passes.
    5 unique versions available
  4. 1914 Map of Union Island
    1914 Map of Union Island
    1914 Union Island
    1914 Print · USGS
    The San Joaquin Delta was a maze of reclaiming lands and new canals in the years before the Great War. Researchers can trace the early infrastructure of Union Island and find rural landmarks like the Naglee School and the Southern Pacific line.
    2 unique versions available
  7. 1916 Map of Tracy
    1916 Map of Tracy
    1916 Tracy
    1916 Print · USGS
    In the early twentieth century, the San Joaquin Valley floor was a complex web of competing rail lines centered on the growing town of Tracy. Researchers can trace the junction of the Southern Pacific and Western Pacific near early sites like Ellis and Jefferson School.
    3 unique versions available
  10. 1916 Map of Midway
    1916 Map of Midway
    1916 Midway
    1916 Print · USGS
    The rail-and-ranching corridor of the Altamont pass comes to life in the years before the Great War. Genealogists and rail historians can trace the competing tracks of the Southern Pacific and Western Pacific as they converge near Midway.
    3 unique versions available
  13. 1922 Map of Carbona
    1922 Map of Carbona
    1922 Carbona
    1922 Print · USGS
    San Joaquin County at the dawn of the roaring twenties reveals a bustling rail landscape where the Southern Pacific meets the Western Pacific. Genealogists and historians can trace early school districts like New Jerusalem School and find industrial roots at the Buckeye Mines.
    3 unique versions available
  16. 1942 Map of Carbona
    1942 Map of Carbona
    1942 Carbona
    1942 Print · USGS
    The rail-and-river landscape of the San Joaquin Valley is captured here just as Tracy was expanding into a regional hub. Genealogists and historians can trace the rural school system through New Jerusalem School and find local landmarks like the Brichetto Tomb and Buckeye Mines.
  19. 1942 Map of Altamont, 1964 Print
    1942 Map of Altamont, 1964 Print
    1942 Altamont
    1964 Print · USGS
    Eastern Alameda County at the start of the war shows a landscape of rail sidings and cattle ranching as the valley meets the ridges. Genealogists and historians can trace family locations like Mendenhall Ranch, rural landmarks like Green School, and the steep rail route through Altamont.
  22. 1943 Map of Tesla
    1943 Map of Tesla
    1943 Tesla
    1943 Print · USGS
    The Livermore Valley and the rugged Diablo Range are shown during the early 1940s, featuring the critical rail junction at Altamont. Genealogists and historians can locate rural landmarks like the Green School, the Mendenhall Ranch, and the isolated Pointers Homestead.
  25. 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.
  28. 1952 Map of Union Island, 1953 Print
    1952 Map of Union Island, 1953 Print
    1952 Union Island
    1953 Print · USGS
    The San Joaquin Delta of the early fifties is mapped here as a productive landscape of reclaimed land and sloughs. Researchers can trace the legacy of local education and industry through the David Bixler Sch and the Sugar Refinery.
    4 unique versions available
  31. 1952 Map of Stockton, 1959 Print
    1952 Map of Stockton, 1959 Print
    1952 Stockton
    1959 Print · USGS
    The San Joaquin Delta during the early fifties shows a thriving river economy and growing urban centers at the heart of the Central Valley. Genealogists can trace rural life through numerous one-room schools like David Bixler School or find industrial roots at the Sugar Refinery and Sharpe General Depot.
    2 unique versions available
  34. 1953 Map of Midway, 1955 Print
    1953 Map of Midway, 1955 Print
    1953 Midway
    1955 Print · USGS
    Altamont Pass and the Diablo Range are captured here during a period of major infrastructure growth in the early fifties. Genealogists and industrial historians can trace the foundations of former boomtowns like Tesla (Site) and Carnegie (Site) alongside the massive Delta-Mendota Canal.
    6 unique versions available
  37. 1954 Map of Tracy, 1955 Print
    1954 Map of Tracy, 1955 Print
    1954 Tracy
    1955 Print · USGS
    Mid-century Tracy emerges as a vital California rail and water hub just as the region's massive canal projects were being completed. Researchers can locate vanished infrastructure and landmarks like the Sharpe General Depot, Carbona, and the Manganese Mill in Corral Hollow.
    6 unique versions available
  40. 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.
  43. 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
  46. 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).
  49. 1978 Map of Union Island
    1978 Map of Union Island
    1978 Union Island
    1978 Print · USGS
    The reclaimed delta lands of San Joaquin County are shown in the late seventies as industrial and residential growth reaches the Tracy area. Researchers can trace the hydraulic history of the region through the Old River, Delta Island Sch, and Tom Paine Slough.
  52. 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
  55. 2021 Map of Midway, 2021 Print
    2021 Map of Midway, 2021 Print
    2021 Midway
    2021 Print · USGS
    This Alameda and San Joaquin County borderland shows the convergence of the Central Valley and the Diablo Range in 2021. Researchers can trace massive water projects like the Governor Edmund G Brown California Aqueduct alongside local features such as Midway and Corral Hollow.
  58. 2021 Map of Union Island, 2021 Print
    2021 Map of Union Island, 2021 Print
    2021 Union Island
    2021 Print · USGS
    San Joaquin County’s delta landscape is captured in the early 2020s, showing the intersection of reclaimed farmland and expanding city limits. Trace the intricate waterways of Union Island and Old River alongside the growth of Tracy and Lathrop.
  61. 2021 Map of Tracy, 2021 Print
    2021 Map of Tracy, 2021 Print
    2021 Tracy
    2021 Print · USGS
    The growing San Joaquin Valley hub of Tracy is captured here alongside the massive engineering of the California Aqueduct and Delta-Mendota Canal. Researchers can locate family landmarks like the Brichetto Tomb - Grave, the Tracy Cem, and the rail-side community of Carbona.
End of results
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