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Old Maps of Concord, California for Metal Detecting

Plan your next treasure hunt with 72 historic maps of Concord. 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 Concord.

Concord, CA maps

(72)
  1. 1896 Map of Carquinez Strait, 1954 Print
    1896 Map of Carquinez Strait, 1954 Print
    1896 Carquinez Strait
    1954 Print · USGS
    The industrial waterfront of the Carquinez Strait comes alive in the 1890s, where shipping channels meet the rails. Genealogists and historians can trace early bay settlements from the U.S. Arsenal at Benicia to the rail hubs of Vallejo and Martinez.
  4. 1896 Map of Mt. Diablo, 1964 Print
    1896 Map of Mt. Diablo, 1964 Print
    1896 Mt. Diablo
    1964 Print · USGS
    The northern slopes of the Diablo Range come alive in the 1890s, where mining settlements like Nortonville and Somersville thrived alongside the Empire R. R. and Star Mine. Trace early rail lines, family landmarks, and the rural roots of Danville and San Ramon.
  7. 1897 Map of Concord
    1897 Map of Concord
    1897 Concord
    1897 Print · USGS
    The East Bay hills and valleys appear here in the late nineteenth century, just as railroads began to reshape the old rancho lands. Researchers can trace the original tracks of the California and Nevada R. R. and early settlements like Pacheco and Lafayette.
    6 unique versions available
  10. 1898 Map of Karquines
    1898 Map of Karquines
    1898 Karquines
    1898 Print · USGS
    The Karquines Strait and Suisun Bay served as a bustling maritime and rail crossroads in the late nineteenth century. Researchers can trace the early layouts of Benicia, Vallejo, and Martinez, or locate vanished landmarks like Seal Bluff Landing and the U.S. Arsenal.
  13. 1898 Map of Mt. Diablo
    1898 Map of Mt. Diablo
    1898 Mt. Diablo
    1898 Print · USGS
    Contra Costa County at the end of the nineteenth century was a rugged landscape of coal mining camps and cattle valleys. Genealogists and local historians can trace the early footprints of Nortonville, Stewartville, and the remote Star Mine nestled among the peaks of Monte del Diablo.
    7 unique versions available
  16. 1901 Map of Karquines
    1901 Map of Karquines
    1901 Karquines
    1901 Print · USGS
    Northern California at the dawn of the twentieth century shows a landscape defined by the deep-water Karquines Strait and industrial rail hubs. Researchers can trace the waterfront activity of Benicia, Vallejo, and Martinez or the tidal marsh outposts at Drawbridge and Rush Landing.
    6 unique versions available
  19. 1902 Map of Napa
    1902 Map of Napa
    1902 Napa
    1902 Print · USGS
    The Napa Valley and Carquinez Strait are captured at the turn of the century, showing a landscape defined by maritime military posts and early vineyards. Genealogists and historians can trace the Mare Island Navy Yard, the Insane Asylum, and rail stops at Zinfandel and Rutherford.
    6 unique versions available
  22. 1907 Map of Antioch, 1955 Print
    1907 Map of Antioch, 1955 Print
    1907 Antioch
    1955 Print · USGS
    The Suisun Bay and Sacramento Delta regions are captured here in the early twentieth century during a period of agricultural and industrial expansion. Local historians can trace family-named river ports like Lingos Landing and rural landmarks such as Scandia School or the settlement of Birds Landing.
  25. 1908 Map of Antioch
    1908 Map of Antioch
    1908 Antioch
    1908 Print · USGS
    The convergence of the great California rivers in the early twentieth century shows a landscape of busy water landings and growing rail towns. Trace the industrial roots of Antioch or locate vanished landings like Palmetto Landing and Duttons Landing along the sloughs.
    5 unique versions available
  28. 1915 Map of Concord
    1915 Map of Concord
    1915 Concord
    1915 Print · USGS
    Contra Costa and Alameda counties are shown here just before the mid-century population boom, when the East Bay was a landscape of ranchos and rail stops. Genealogists can trace family footprints in small 1910s settlements like Moraga, Pacheco, and Lafayette.
    5 unique versions available
  31. 1918 Map of Honker Bay
    1918 Map of Honker Bay
    1918 Honker Bay
    1918 Print · USGS
    The industrial waterfront of Contra Costa and Solano counties comes alive in this survey of the Sacramento River delta. Trace the rail networks at Pittsburg and find historic riverfront stops like Birds Landing and Yolo Landing.
    2 unique versions available
  34. 1940 Map of Carquinez Strait, 1963 Print
    1940 Map of Carquinez Strait, 1963 Print
    1940 Carquinez Strait
    1963 Print · USGS
    The industrial waterfronts of Solano and Contra Costa counties are captured here just before the mid-century boom. Genealogists and historians can trace the rail-and-water networks of Port Costa, Benicia, and Vallejo, or locate landmarks like the Carquinez Cem and the Benicia Auto Ferry.
    2 unique versions available
  37. 1942 Map of Concord
    1942 Map of Concord
    1942 Concord
    1942 Print · USGS
    The East Bay interior was a landscape of expanding valley towns and deep-rooted ranching tracts in the early 1940s. Genealogists and historians can trace rail-era settlements like Concord, Lafayette, and Walnut Creek alongside local landmarks like St Marys College and Sherman Field.
  40. 1942 Map of Carquinez
    1942 Map of Carquinez
    1942 Carquinez
    1942 Print · USGS
    The industrial waterfront of the Carquinez Strait is captured here during the early years of the war. Researchers can trace the complex rail networks of the Southern Pacific and locate established neighborhoods in Vallejo, Benicia, and Crockett.
  43. 1943 Map of Concord
    1943 Map of Concord
    1943 Concord
    1943 Print · USGS
    The East Bay and Contra Costa interior appear here during the wartime era, showing the transition from urban waterfronts to rural valley communities. Researchers can trace early rail lines like the Sacramento Northern RR and locate local landmarks such as St Marys College and Acalanes Sch.
  46. 1943 Map of Mt. Diablo
    1943 Map of Mt. Diablo
    1943 Mt. Diablo
    1943 Print · USGS
    The Mt. Diablo foothills and San Ramon Valley are captured here during the early 1940s, showcasing a landscape of cattle ranches and remote schoolhouses. Genealogists and local historians can locate early landmarks like Blackhawk Ranch, Cowell, and the Morgan Territory Sch.
  49. 1947 Map of Santa Rosa
    1947 Map of Santa Rosa
    1947 Santa Rosa
    1947 Print · USGS
    Northern California in the late 1940s was a landscape of agricultural valleys and vital rail hubs. Trace the historic routes of the Northwestern Pacific through Healdsburg or explore the mid-century waterfronts of Vallejo and Benicia near Mare Island.
  52. 1947 Map of San Francisco, 1948 Print
    1947 Map of San Francisco, 1948 Print
    1947 San Francisco
    1948 Print · USGS
    The Bay Area in the late 1940s reveals a region transitioning from wartime intensity to post-war suburban growth. Trace the historic rail lines of the Southern Pacific RR or locate early military footprints at Fort Funston and Moffett Field.
  55. 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
  58. 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.
  61. 1947 Map of Walnut Creek, 1954 Print
    1947 Map of Walnut Creek, 1954 Print
    1947 Walnut Creek
    1954 Print · USGS
    Central Contra Costa County is shown here in the late 1940s, transitioning from a landscape of quiet valleys and orchards to a growing suburban network. Researchers can trace the heritage of Walnut Creek and Concord through landmarks like the Fernando Adobe and the Sacramento Northern rail lines.
  64. 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.
  67. 1948 Map of San Francisco, 1951 Print
    1948 Map of San Francisco, 1951 Print
    1948 San Francisco
    1951 Print · USGS
    The Bay Area in the late 1940s reveals a landscape defined by rapid post-war growth and a heavy military presence at the Golden Gate. Trace the development of early trans-bay infrastructure like the Oakland-Bay Bridge and historic coastal defense sites such as Fort Funston and Alcatraz Island.
  70. 1949 Map of Walnut Creek
    1949 Map of Walnut Creek
    1949 Walnut Creek
    1949 Print · USGS
    Post-war Contra Costa County is shown here as suburban growth begins to reach into the valley's traditional orchards and rail corridors. Trace the development of Concord and Walnut Creek through landmarks like Buchanan Field, St Stephens Cem, and the Sacramento Northern line.
    2 unique versions available
  73. 1949 Map of Santa Rosa
    1949 Map of Santa Rosa
    1949 Santa Rosa
    1949 Print · USGS
    The North Bay and Wine Country appear here in the late 1940s, when the Northwestern Pacific RR still dominated regional transit. Genealogists and historians can trace old coastal outposts like Anchor Bay Settlement and the early layout of Santa Rosa.
    2 unique versions available
Showing maps 1-25 of 72

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Frequently asked questions

  • What are the different types of historical maps available for Concord?
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