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Old Maps of Union, Maine

Explore 33 old maps of Union, spanning from 1904 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 Union 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 Union to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Union, ME maps

(33)
  1. 1904 Map of Rockland, 1961 Print
    1904 Map of Rockland, 1961 Print
    1904 Rockland
    1961 Print · USGS
    Coastal Knox County comes alive in this early twentieth-century survey of the harbor towns and the rocky Penobscot Bay shoreline. Trace the routes of the Maine Central RR and ELECTRIC lines to historic settlements like Blackinton Corners and Sharkeyville.
  4. 1906 Map of Rockland
    1906 Map of Rockland
    1906 Rockland
    1906 Print · USGS
    Coastal Knox County comes alive in the first decade of the century, showing a bustling network of harbors and early transit systems. Genealogists and historians can trace family roots through crossroads like Blackinton Corners or investigate the old Wattons Mill and the Electric RR lines.
    7 unique versions available
  7. 1913 Map of Waldoboro
    1913 Map of Waldoboro
    1913 Waldoboro
    1913 Print · USGS
    Coastal Lincoln and Knox counties come alive in this pre-war survey, showing a landscape of tightly-knit villages and rural school districts connected by the river and rail. Researchers can trace ancestral footprints at the Old Dutch Church, Winslows Mills, and the Benners Corner Cem.
    2 unique versions available
  10. 1915 Map of Waldoboro
    1915 Map of Waldoboro
    1915 Waldoboro
    1915 Print · USGS
    Coastal Lincoln County is surveyed here in the early twentieth century, showing a landscape defined by tidal rivers and small farming hamlets. Genealogists can locate family-named sites like Flanders Corner and rural institutions such as the Branch School and Broad Cove PO.
    5 unique versions available
  13. 1916 Map of Liberty
    1916 Map of Liberty
    1916 Liberty
    1916 Print · USGS
    Mid-coast Maine at the start of the Great War was a patchwork of small townships and family farmsteads connected by narrow-gauge rails. Researchers can locate dozens of country schools and named crossroads such as The Kingdom, Hibberts Gore, and Woodmans Mills.
    6 unique versions available
  16. 1941 Map of Rockland
    1941 Map of Rockland
    1941 Rockland
    1941 Print · USGS
    The Knox County shoreline during the early 1940s features a detailed look at maritime life and coastal industry. Genealogists and historians can trace the foundations of Rockland, locate the Rockland Breakwater Lighthouse, and explore villages like South Thomaston and Wattons Mill.
  19. 1941 Map of Waldoboro
    1941 Map of Waldoboro
    1941 Waldoboro
    1941 Print · USGS
    The Medomak River valley and its surrounding coastal hills are captured here just as the war began. You can trace early twentieth-century rail connections at Glendon Station, find family-named crossroads like Whitney Corner, and locate local landmarks such as Winslows Mills.
  22. 1942 Map of Liberty
    1942 Map of Liberty
    1942 Liberty
    1942 Print · USGS
    Waldo and Lincoln County lands are documented here just before mid-century, showing a landscape of rural schools and family-named corners. Genealogists can trace property near Hibberts Gore or locate ancestral homesites near Handy Sch and Montville Post Office.
  25. 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.
  28. 1950 Map of Liberty
    1950 Map of Liberty
    1950 Liberty
    1950 Print · USGS
    Mid-century Waldo County and its neighbors are defined here by a network of crossroad hamlets and upland ridges just after the war. Local historians can trace the foundations of The Kingdom, identify family sites near Hutchins Corner, or locate rural schoolhouses like Hallidale Sch.
  31. 1950 Map of Waldoboro
    1950 Map of Waldoboro
    1950 Waldoboro
    1950 Print · USGS
    The Medomak River valley and the coastal hills of Lincoln County are captured here in the mid-century, prior to modern suburban expansion. Genealogists and historians can locate old landmarks like Nobleboro Station, Winslow Mills, and numerous neighborhood schools like Duckpuddle Sch.
  34. 1955 Map of West Rockport, 1959 Print
    1955 Map of West Rockport, 1959 Print
    1955 West Rockport
    1959 Print · USGS
    Midcoast Maine in the mid-fifties reveals a landscape of high granite peaks and working waterpower sites across Knox County. Genealogists can locate family burial grounds and landmarks like Goulds Hospital, Wattons Mill, and East Union.
    5 unique versions available
  37. 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
  40. 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.
  43. 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.
  46. 1961 Map of Washington, 1964 Print
    1961 Map of Washington, 1964 Print
    1961 Washington
    1964 Print · USGS
    Mid-coast Maine’s interior highlands in the early sixties reveal a landscape of interconnected small villages and deep-water ponds. Genealogists and local historians can locate several family burial grounds, including Weymouth Cem and Skidmore Cem, alongside landmarks like Woodmans Mills and Prescott Memorial Sch.
    3 unique versions available
  49. 1965 Map of Union, 1967 Print
    1965 Map of Union, 1967 Print
    1965 Union
    1967 Print · USGS
    Knox County is captured in the mid-sixties as a landscape of interconnected ponds and rural hamlets. Local historians can trace the Old Railroad Grade and identify family-named crossroads like Whitney Corner and Manks Corner.
    4 unique versions available
  52. 1984 Map of Augusta
    1984 Map of Augusta
    1984 Augusta
    1984 Print · USGS
    Mid-coast and central Maine were undergoing steady change in the mid-eighties as traditional river and coastal industries met expanding recreation. You can trace the Maine Central RR through Augusta or explore the rugged shoreline from Rockland Harbor up to Mount Megunticook.
  55. 2011 Map of Washington, 2011 Print
    2011 Map of Washington, 2011 Print
    2011 Washington
    2011 Print · USGS
    Covers Union, including Washington, Searsmont, and other nearby areas
  58. 2011 Map of West Rockport, 2011 Print
    2011 Map of West Rockport, 2011 Print
    2011 West Rockport
    2011 Print · USGS
    Covers Union, including Rockland, Warren, and other nearby areas
  61. 2011 Map of Union, 2011 Print
    2011 Map of Union, 2011 Print
    2011 Union
    2011 Print · USGS
    Covers Union, including Warren, Hope, and other nearby areas
  64. 2014 Map of Washington, 2014 Print
    2014 Map of Washington, 2014 Print
    2014 Washington
    2014 Print · USGS
    Covers Union, including Washington, Searsmont, and other nearby areas
  67. 2014 Map of West Rockport, 2014 Print
    2014 Map of West Rockport, 2014 Print
    2014 West Rockport
    2014 Print · USGS
    Covers Union, including Rockland, Warren, and other nearby areas
  70. 2014 Map of Union, 2014 Print
    2014 Map of Union, 2014 Print
    2014 Union
    2014 Print · USGS
    Covers Union, including Warren, Hope, and other nearby areas
  73. 2018 Map of Washington, 2018 Print
    2018 Map of Washington, 2018 Print
    2018 Washington
    2018 Print · USGS
    Covers Union, including Washington, Searsmont, and other nearby areas
Showing maps 1-25 of 33

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