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Old Maps of Mainstream, Harmony

Explore 10 old maps of Mainstream, spanning from 1913 to today. These high-resolution historic maps reveal how streets, neighborhoods, landmarks, and natural features evolved over time — perfect for genealogy, metal detecting, research, and local history exploration.

What you can do with these maps:

  • See how Mainstream changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
  • View detailed metadata: Each map includes creators, publishers, year, scale, and archive source.
  • Overlay maps with satellite & LiDAR: Visualize the past alongside modern tools to explore terrain & human change.
  • Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
  • Access maps your way: View online, download high-res files, or order prints for personal or research use.

Start exploring old maps of Mainstream to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Mainstream, Harmony maps

(10)
  1. 1913 Map of Skowhegan
    1913 Map of Skowhegan
    1913 Skowhegan
    1913 Print · USGS
    Somerset County thrives as a hub of rail and river industry in this pre-war survey. Genealogists can trace family names through dozens of rural landmarks like Malbons Mills, the Union Church, and neighborhood schoolhouses from Athens to Canaan.
    4 unique versions available
  4. 1948 Map of Bangor
    1948 Map of Bangor
    1948 Bangor
    1948 Print · USGS
    The Maine coast and its industrial river valleys are captured here shortly after the war, showing the vital shipping and rail hubs of the late 1940s. Genealogists and historians can trace the tracks of the Maine Central RR connecting Bangor, Augusta, and Old Town.
  7. 1955 Map of Skowhegan, 1958 Print
    1955 Map of Skowhegan, 1958 Print
    1955 Skowhegan
    1958 Print · USGS
    Somerset County in the mid-fifties shows a landscape of busy river towns and rural school districts connected by the Maine Central railroad. Genealogists can trace family names through landmarks like Malbons Mills, Cass Corner, and the Somerset Academy.
    4 unique versions available
  10. 1956 Map of Bangor, 1966 Print
    1956 Map of Bangor, 1966 Print
    1956 Bangor
    1966 Print · USGS
    Mid-century Maine comes alive in this survey of the rugged coast and river valleys during the 1950s. Genealogists and historians can trace the vital rail corridors of the Maine Central RR connecting timber towns like Old Town to the coast at Bar Harbor.
    3 unique versions available
  13. 1960 Map of Bangor
    1960 Map of Bangor
    1960 Bangor
    1960 Print · USGS
    Central Maine in the sixties reveals a landscape of river-powered industry and sprawling coastal island chains. Researchers can trace the rail corridors of the Maine Central or locate mid-century aviation landmarks like Dow Air Force Base.
  16. 1961 Map of Bangor
    1961 Map of Bangor
    1961 Bangor
    1961 Print · USGS
    Mid-century Maine comes alive through its busy river ports and rocky archipelagoes during a period of steady maritime and rail commerce. Researchers can trace the path of the Maine Central railroad and locate coastal landmarks from Acadia National Park to Vinalhaven Island.
  19. 1975 Map of Skowhegan NE, 1980 Print
    1975 Map of Skowhegan NE, 1980 Print
    1975 Skowhegan NE
    1980 Print · USGS
    Somerset County, Maine, is captured in this mid-seventies orthophotograph showing the rural transition between forest and farmland. Genealogists and local historians can trace the clearings around Harmony and Mainstream or study the shoreline of Moose Pond.
  22. 1985 Map of Skowhegan, 1986 Print
    1985 Map of Skowhegan, 1986 Print
    1985 Skowhegan
    1986 Print · USGS
    Central Maine in the mid-eighties shows a landscape of river-driven industry and rural crossroads. Genealogists can trace family names and farmsteads near Lake George or along the Maine Central Railroad through Pittsfield and Burnham.
    2 unique versions available
  25. 1989 Map of Harmony
    1989 Map of Harmony
    1989 Harmony
    1989 Print · USGS
    The Somerset County countryside surrounding Harmony is captured here in the late eighties, just as the regional landscape balanced its rural roots with recreation. You can trace the Old RR Grade through Mainstream or locate family sites near Great Moose Lake and Corson Corner.
  28. 2024 Map of Harmony, 2024 Print
    2024 Map of Harmony, 2024 Print
    2024 Harmony
    2024 Print · USGS
    Somerset County, Maine, is shown in this recent survey as a landscape of interconnected streams and family-named ridges. Genealogists and local historians can trace historical burial sites like Leighton Cem and Jordan Cem or follow the Boise Cascade RR Bed along the Sebasticook River.
End of results
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