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Old Maps of Unity, Maryland for Metal Detecting

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

Unity, MD maps

(16)
  1. 1893 Map of Frederick
    1893 Map of Frederick
    1893 Frederick
    1893 Print · USGS
    Covers Unity, including Germantown, Frederick, and other nearby areas
  4. 1894 Map of Frederick
    1894 Map of Frederick
    1894 Frederick
    1894 Print · USGS
    Covers Unity, including Germantown, Frederick, and other nearby areas
    5 unique versions available
  7. 1908 Map of Rockville
    1908 Map of Rockville
    1908 Rockville
    1908 Print · USGS
    Covers Unity, including Silver Spring, Gaithersburg, and other nearby areas
    3 unique versions available
  10. 1923 Map of Rockville
    1923 Map of Rockville
    1923 Rockville
    1923 Print · USGS
    Covers Unity, including Silver Spring, Gaithersburg, and other nearby areas
    4 unique versions available
  13. 1944 Map of Rockville, 1955 Print
    1944 Map of Rockville, 1955 Print
    1944 Rockville
    1955 Print · USGS
    Covers Unity, including Silver Spring, Gaithersburg, and other nearby areas
  16. 1945 Map of Sandy Spring, 1959 Print
    1945 Map of Sandy Spring, 1959 Print
    1945 Sandy Spring
    1959 Print · USGS
    Covers Unity, including Olney, Laytonsville, and other nearby areas
    5 unique versions available
  19. 1948 Map of Baltimore
    1948 Map of Baltimore
    1948 Baltimore
    1948 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
    2 unique versions available
  22. 1950 Map of Sandy Spring
    1950 Map of Sandy Spring
    1950 Sandy Spring
    1950 Print · USGS
    Covers Unity, including Olney, Laytonsville, and other nearby areas
    2 unique versions available
  25. 1954 Map of Baltimore
    1954 Map of Baltimore
    1954 Baltimore
    1954 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
  28. 1956 Map of Baltimore
    1956 Map of Baltimore
    1956 Baltimore
    1956 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
  31. 1957 Map of Baltimore, 1964 Print
    1957 Map of Baltimore, 1964 Print
    1957 Baltimore
    1964 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
    5 unique versions available
  34. 1961 Map of Baltimore
    1961 Map of Baltimore
    1961 Baltimore
    1961 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
  37. 1981 Map of Sandy Spring, 1986 Print
    1981 Map of Sandy Spring, 1986 Print
    1981 Sandy Spring
    1986 Print · USGS
    Covers Unity, including Olney, Laytonsville, and other nearby areas
  40. 1984 Map of Frederick, 1985 Print
    1984 Map of Frederick, 1985 Print
    1984 Frederick
    1985 Print · USGS
    Covers Unity, including Germantown, Frederick, and other nearby areas
  43. 1988 Map of Sandy Spring, 1996 Print
    1988 Map of Sandy Spring, 1996 Print
    1988 Sandy Spring
    1996 Print · USGS
    Covers Unity, including Olney, Laytonsville, and other nearby areas
  46. 1989 Map of Baltimore
    1989 Map of Baltimore
    1989 Baltimore
    1989 Print · USGS
    Covers Unity, including Baltimore, Columbia, and other nearby areas
End of results
Showing maps 1-16 of 16

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Frequently asked questions

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