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Old Maps of Portland, Maine for Metal Detecting

Plan your next treasure hunt with 38 historic maps of Portland. 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 Portland.

Portland, ME maps

(38)
  1. 1891 Map of Portland
    1891 Map of Portland
    1891 Portland
    1891 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
  4. 1893 Map of Small Point
    1893 Map of Small Point
    1893 Small Point
    1893 Print · USGS
    Covers Portland, including Harpswell, Phippsburg, and other nearby areas
    5 unique versions available
  7. 1893 Map of Portland
    1893 Map of Portland
    1893 Portland
    1893 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
    6 unique versions available
  10. 1893 Map of Casco Bay
    1893 Map of Casco Bay
    1893 Casco Bay
    1893 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
    5 unique versions available
  13. 1914 Map of Portland
    1914 Map of Portland
    1914 Portland
    1914 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
  16. 1914 Map of Casco Bay
    1914 Map of Casco Bay
    1914 Casco Bay
    1914 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
  19. 1916 Map of Portland
    1916 Map of Portland
    1916 Portland
    1916 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
    7 unique versions available
  22. 1916 Map of Casco Bay
    1916 Map of Casco Bay
    1916 Casco Bay
    1916 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
    8 unique versions available
  25. 1916 Map of Portland And Vicinity
    1916 Map of Portland And Vicinity
    1916 Portland And Vicinity
    1916 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
  28. 1918 Map of Portland And Vicinity, 1926 Print
    1918 Map of Portland And Vicinity, 1926 Print
    1918 Portland And Vicinity
    1926 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
  31. 1919 Map of Small Point
    1919 Map of Small Point
    1919 Small Point
    1919 Print · USGS
    Covers Portland, including Harpswell, Phippsburg, and other nearby areas
  34. 1941 Map of Casco Bay
    1941 Map of Casco Bay
    1941 Casco Bay
    1941 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
  37. 1941 Map of Portland
    1941 Map of Portland
    1941 Portland
    1941 Print · USGS
    Covers Portland, including South Portland, Biddeford, and other nearby areas
  40. 1944 Map of Portland East
    1944 Map of Portland East
    1944 Portland East
    1944 Print · USGS
    Covers Portland, including South Portland, Falmouth, and other nearby areas
    2 unique versions available
  43. 1944 Map of Small Point
    1944 Map of Small Point
    1944 Small Point
    1944 Print · USGS
    Covers Portland, including Harpswell, Phippsburg, and other nearby areas
    3 unique versions available
  46. 1944 Map of South Harpswell
    1944 Map of South Harpswell
    1944 South Harpswell
    1944 Print · USGS
    Covers Portland, including Harpswell, Chebeague Island, and other nearby areas
  49. 1944 Map of Cape Elizabeth
    1944 Map of Cape Elizabeth
    1944 Cape Elizabeth
    1944 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
  52. 1944 Map of Portland West, 1948 Print
    1944 Map of Portland West, 1948 Print
    1944 Portland West
    1948 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
  55. 1948 Map of Bath
    1948 Map of Bath
    1948 Bath
    1948 Print · USGS
    Covers Portland, including Brunswick, Topsham, and other nearby areas
    2 unique versions available
  58. 1948 Map of Portland West
    1948 Map of Portland West
    1948 Portland West
    1948 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
  61. 1949 Map of Portland
    1949 Map of Portland
    1949 Portland
    1949 Print · USGS
    Covers Portland, including Manchester, Concord, and other nearby areas
    3 unique versions available
  64. 1956 Map of Portland East, 1958 Print
    1956 Map of Portland East, 1958 Print
    1956 Portland East
    1958 Print · USGS
    Covers Portland, including South Portland, Falmouth, and other nearby areas
    5 unique versions available
  67. 1956 Map of Portland West, 1958 Print
    1956 Map of Portland West, 1958 Print
    1956 Portland West
    1958 Print · USGS
    Covers Portland, including South Portland, Scarborough, and other nearby areas
    6 unique versions available
  70. 1956 Map of South Harpswell, 1959 Print
    1956 Map of South Harpswell, 1959 Print
    1956 South Harpswell
    1959 Print · USGS
    Covers Portland, including Harpswell, Chebeague Island, and other nearby areas
    3 unique versions available
  73. 1956 Map of Portland, 1963 Print
    1956 Map of Portland, 1963 Print
    1956 Portland
    1963 Print · USGS
    Covers Portland, including Manchester, Concord, and other nearby areas
    4 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 Portland?
  • What is the oldest map of Portland?
  • Where can I purchase historical maps of Portland for my home or office?
  • Where can I download high-res historical maps of Portland?
  • Are there historical topographic maps available for Portland?
  • Is there historical aerial imagery available for Portland?
  • Where are historical maps of Portland sourced from?