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Old Maps of Union, Missouri for Metal Detecting

Plan your next treasure hunt with 16 historic maps of Union. 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.

Union, MO maps

(16)
  1. 1901 Map of De Soto
    1901 Map of De Soto
    1901 De Soto
    1901 Print · USGS
    Covers Union, including Wildwood, Eureka, and other nearby areas
    5 unique versions available
  4. 1903 Map of Sullivan
    1903 Map of Sullivan
    1903 Sullivan
    1903 Print · USGS
    Covers Union, including Sullivan, Cuba, and other nearby areas
    3 unique versions available
  7. 1946 Map of Union, 1958 Print
    1946 Map of Union, 1958 Print
    1946 Union
    1958 Print · USGS
    Covers Union, including Sullivan, Leslie, and other nearby areas
    2 unique versions available
  10. 1947 Map of St. Clair, 1950 Print
    1947 Map of St. Clair, 1950 Print
    1947 St. Clair
    1950 Print · USGS
    Covers Union, including Pacific, Saint Clair, and other nearby areas
    3 unique versions available
  13. 1948 Map of Union
    1948 Map of Union
    1948 Union
    1948 Print · USGS
    Covers Union, including Sullivan, Leslie, and other nearby areas
  16. 1949 Map of Saint Louis
    1949 Map of Saint Louis
    1949 Saint Louis
    1949 Print · USGS
    Covers Union, including St. Louis, O'Fallon, and other nearby areas
    2 unique versions available
  19. 1950 Map of St. Clair
    1950 Map of St. Clair
    1950 St. Clair
    1950 Print · USGS
    Covers Union, including Pacific, Saint Clair, and other nearby areas
  22. 1962 Map of St. Louis
    1962 Map of St. Louis
    1962 St. Louis
    1962 Print · USGS
    Covers Union, including St. Louis, O'Fallon, and other nearby areas
  25. 1963 Map of St. Louis, 1970 Print
    1963 Map of St. Louis, 1970 Print
    1963 St. Louis
    1970 Print · USGS
    Covers Union, including St. Louis, O'Fallon, and other nearby areas
    4 unique versions available
  28. 1966 Map of St. Louis
    1966 Map of St. Louis
    1966 St. Louis
    1966 Print · USGS
    Covers Union, including St. Louis, O'Fallon, and other nearby areas
  31. 1966 Map of Union, 1967 Print
    1966 Map of Union, 1967 Print
    1966 Union
    1967 Print · USGS
    Covers Union, including Aeiker Ford, Neier, and other nearby areas
    3 unique versions available
  34. 1969 Map of Moselle, 1971 Print
    1969 Map of Moselle, 1971 Print
    1969 Moselle
    1971 Print · USGS
    Covers Union, including Gildehouse, St. Clair, and other nearby areas
    3 unique versions available
  37. 1980 Map of Moselle, 1982 Print
    1980 Map of Moselle, 1982 Print
    1980 Moselle
    1982 Print · USGS
    Covers Union, including Gildehouse, St. Clair, and other nearby areas
  40. 1980 Map of Union, 1982 Print
    1980 Map of Union, 1982 Print
    1980 Union
    1982 Print · USGS
    Covers Union, including Aeiker Ford, Neier, and other nearby areas
  43. 1985 Map of Sullivan
    1985 Map of Sullivan
    1985 Sullivan
    1985 Print · USGS
    Covers Union, including Sullivan, St. James, and other nearby areas
    3 unique versions available
  46. 1985 Map of Festus, 1987 Print
    1985 Map of Festus, 1987 Print
    1985 Festus
    1987 Print · USGS
    Covers Union, including Belleville, Oakville, and other nearby areas
End of results
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Frequently asked questions

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