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Old Maps of Union City, California for Metal Detecting

Plan your next treasure hunt with 38 historic maps of Union City. 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 Union City.

Union City, CA maps

(38)
  1. 1899 Map of Haywards
    1899 Map of Haywards
    1899 Haywards
    1899 Print · USGS
    Covers Union City, including Oakland, Fremont, and other nearby areas
    6 unique versions available
  4. 1906 Map of Pleasanton
    1906 Map of Pleasanton
    1906 Pleasanton
    1906 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
    5 unique versions available
  7. 1915 Map of Haywards
    1915 Map of Haywards
    1915 Haywards
    1915 Print · USGS
    Covers Union City, including Oakland, Fremont, and other nearby areas
    5 unique versions available
  10. 1941 Map of Pleasanton
    1941 Map of Pleasanton
    1941 Pleasanton
    1941 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  13. 1942 Map of Hayward
    1942 Map of Hayward
    1942 Hayward
    1942 Print · USGS
    Covers Union City, including Oakland, Fremont, and other nearby areas
  16. 1943 Map of Pleasanton
    1943 Map of Pleasanton
    1943 Pleasanton
    1943 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  19. 1947 Map of San Francisco, 1948 Print
    1947 Map of San Francisco, 1948 Print
    1947 San Francisco
    1948 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
  22. 1947 Map of San Jose, 1948 Print
    1947 Map of San Jose, 1948 Print
    1947 San Jose
    1948 Print · USGS
    Covers Union City, including San Jose, Stockton, and other nearby areas
  25. 1947 Map of Hayward, 1957 Print
    1947 Map of Hayward, 1957 Print
    1947 Hayward
    1957 Print · USGS
    Covers Union City, including Oakland, Hayward, and other nearby areas
  28. 1947 Map of Newark, 1958 Print
    1947 Map of Newark, 1958 Print
    1947 Newark
    1958 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  31. 1948 Map of Newark
    1948 Map of Newark
    1948 Newark
    1948 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  34. 1948 Map of San Francisco, 1951 Print
    1948 Map of San Francisco, 1951 Print
    1948 San Francisco
    1951 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
  37. 1950 Map of Hayward
    1950 Map of Hayward
    1950 Hayward
    1950 Print · USGS
    Covers Union City, including Oakland, Hayward, and other nearby areas
  40. 1953 Map of Dublin, 1955 Print
    1953 Map of Dublin, 1955 Print
    1953 Dublin
    1955 Print · USGS
    Covers Union City, including Hayward, Pleasanton, and other nearby areas
    2 unique versions available
  43. 1953 Map of Niles, 1955 Print
    1953 Map of Niles, 1955 Print
    1953 Niles
    1955 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  46. 1953 Map of Livermore, 1960 Print
    1953 Map of Livermore, 1960 Print
    1953 Livermore
    1960 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
  49. 1955 Map of San Francisco
    1955 Map of San Francisco
    1955 San Francisco
    1955 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
  52. 1956 Map of San Jose
    1956 Map of San Jose
    1956 San Jose
    1956 Print · USGS
    Covers Union City, including San Jose, Stockton, and other nearby areas
  55. 1956 Map of San Francisco
    1956 Map of San Francisco
    1956 San Francisco
    1956 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
    4 unique versions available
  58. 1957 Map of San Francisco
    1957 Map of San Francisco
    1957 San Francisco
    1957 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
  61. 1959 Map of Hayward, 1960 Print
    1959 Map of Hayward, 1960 Print
    1959 Hayward
    1960 Print · USGS
    Covers Union City, including Oakland, Hayward, and other nearby areas
    6 unique versions available
  64. 1959 Map of Newark, 1960 Print
    1959 Map of Newark, 1960 Print
    1959 Newark
    1960 Print · USGS
    Covers Union City, including Fremont, Hayward, and other nearby areas
    7 unique versions available
  67. 1959 Map of Hayward, 1961 Print
    1959 Map of Hayward, 1961 Print
    1959 Hayward
    1961 Print · USGS
    Covers Union City, including Oakland, Fremont, and other nearby areas
    2 unique versions available
  70. 1960 Map of San Francisco
    1960 Map of San Francisco
    1960 San Francisco
    1960 Print · USGS
    Covers Union City, including San Jose, San Francisco, and other nearby areas
  73. 1961 Map of Dublin
    1961 Map of Dublin
    1961 Dublin
    1961 Print · USGS
    Covers Union City, including Hayward, Pleasanton, and other nearby areas
    10 unique versions available
Showing maps 1-25 of 38

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Frequently asked questions

  • What are the different types of historical maps available for Union City?
  • What is the oldest map of Union City?
  • Where can I purchase historical maps of Union City for my home or office?
  • Where can I download high-res historical maps of Union City?
  • Are there historical topographic maps available for Union City?
  • Is there historical aerial imagery available for Union City?
  • Where are historical maps of Union City sourced from?