Old Maps of Union Township, Ohio

Explore 33 old maps of Union Township, spanning from 1906 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 Township 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 Township to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.


Union Township, OH maps

(33)
  1. 1906 Map of Columbus Grove, 1956 Print
    1906 Map of Columbus Grove, 1956 Print
    1906 Columbus Grove
    1956 Print · USGS
    In the early twentieth century, Putnam and Allen Counties were centers of Ohio's rail and pike expansion. Researchers can trace historic transportation lines like the Ohio Electric Railway and locate long-standing community landmarks such as Leatherwood Church, Kalida, and Slabtown.

  2. 1908 Map of Columbus Grove, 1932 Print
    1908 Map of Columbus Grove, 1932 Print
    1908 Columbus Grove
    1932 Print · USGS
    Northwestern Ohio at the start of the century reveals a landscape undergoing a rapid rail-driven expansion. Researchers can trace the path of the Lima and Pittsburg Electric RR and locate rural landmarks like the Leatherwood Church or the County Infirmary.

  3. 1908 Map of Ottawa, 1936 Print
    1908 Map of Ottawa, 1936 Print
    1908 Ottawa
    1936 Print · USGS
    Northwest Ohio's agricultural landscape is seen here in the early twentieth century as a complex network of drainage ditches and competing rail lines. Genealogists can trace family roots in settlements like Glandorf, Miller City, and the rural hub of Ottawa.
    2 unique versions available

  4. 1953 Map of Fort Wayne, 1963 Print
    1953 Map of Fort Wayne, 1963 Print
    1953 Fort Wayne
    1963 Print · USGS
    Northeast Indiana and its neighboring borderlands in Michigan and Ohio appear here during a peak era of rail and road expansion. Researchers can trace the massive rail networks of the Nickel Plate Road and Wabash or locate lakeside landmarks like Lake Wawasee and Clear Lake.
    4 unique versions available

  5. 1953 Map of Muncie, 1966 Print
    1953 Map of Muncie, 1966 Print
    1953 Muncie
    1966 Print · USGS
    Indiana and Ohio borderlands thrive in the early fifties, showing a landscape defined by manufacturing cities and an intensive railroad network. Genealogists can trace family roots across the Indiana-Ohio line through Muncie, Celina, and Portland via the Pennsylvania railroad.
    5 unique versions available

  6. 1956 Map of Muncie
    1956 Map of Muncie
    1956 Muncie
    1956 Print · USGS
    Eastern Indiana and western Ohio are shown at a peak of rail-driven industry in the mid-fifties. Genealogists and rail historians can trace the paths of the Pennsylvania RR through Muncie or locate landmarks like Lake Saint Marys (Grand Lake Reservoir) and Frances Slocum State Forest.

  7. 1956 Map of Fort Wayne
    1956 Map of Fort Wayne
    1956 Fort Wayne
    1956 Print · USGS
    The tri-state borderlands of Indiana, Michigan, and Ohio are captured here in the mid-fifties, centered on the growing industrial hub of Fort Wayne. Researchers can trace the heavy rail lines of the New York Central and Pennsylvania alongside prominent water features like Lake Wawasee and the Maumee River.
    2 unique versions available

  8. 1960 Map of Columbus Grove, 1961 Print
    1960 Map of Columbus Grove, 1961 Print
    1960 Columbus Grove
    1961 Print · USGS
    Columbus Grove in the early sixties sits at a busy tri-rail junction where the landscape is still marked by the Old Indian Treaty Boundary. Genealogists can trace family lands along Trumbo Road and locate several burial sites like Bogart Cem and Truro Cem.
    2 unique versions available

  9. 1960 Map of Ottawa, 1961 Print
    1960 Map of Ottawa, 1961 Print
    1960 Ottawa
    1961 Print · USGS
    Ottawa and Glandorf appear at a mid-century crossroads in this Putnam County survey, where modern developments meet historical land boundaries. Genealogists can locate family sites at SS Peter and Paul Cem or Crow Cem, while rail enthusiasts can trace the Baltimore and Ohio line.
    3 unique versions available

  10. 1960 Map of Miller City, 1961 Print
    1960 Map of Miller City, 1961 Print
    1960 Miller City
    1961 Print · USGS
    Miller City and the surrounding Putnam County townships are captured here in the early sixties, showing a landscape of precise section lines and river meanders. Researchers can locate vanished landmarks and family sites like Kieferville, Varner Cem, and the Forest Grove Ch.
    2 unique versions available

  11. 1960 Map of Kalida, 1961 Print
    1960 Map of Kalida, 1961 Print
    1960 Kalida
    1961 Print · USGS
    Putnam County's agricultural heartland is captured here at the start of the 1960s, centered on the confluence of the Ottawa River and Plum Creek. Genealogists can trace family footprints across several rural burial grounds like Hughes Cem and Reynolds Cem or along the southern Akron Canton and Youngstown rail line.
    2 unique versions available

  12. 1986 Map of Lima
    1986 Map of Lima
    1986 Lima
    1986 Print · USGS
    West Ohio and East Indiana are captured here in the mid-1980s, showcasing a landscape of productive farmland and industrial transit hubs. Genealogists and historians can trace the development of Lima and Van Wert or locate landmarks like Woodland Chapel and the Lima Ordnance Modification Center.
    3 unique versions available

  13. 1986 Map of Defiance, 1992 Print
    1986 Map of Defiance, 1992 Print
    1986 Defiance
    1992 Print · USGS
    Northwest Ohio and Eastern Indiana appear in the late eighties as a landscape shaped by significant river confluences and rail corridors. Researchers can trace the layout of local towns and landmarks like Defiance College, Forest Hill Cem, and the path of the Norfolk and Western RR.

  14. 2010 Map of Columbus Grove, 2010 Print
    2010 Map of Columbus Grove, 2010 Print
    2010 Columbus Grove
    2010 Print · USGS
    Covers Union Township, including Ottawa, Columbus Grove, and other nearby areas

  15. 2010 Map of Kalida, 2010 Print
    2010 Map of Kalida, 2010 Print
    2010 Kalida
    2010 Print · USGS
    Covers Union Township, including Kalida, Seitz, and other nearby areas

  16. 2010 Map of Ottawa, 2010 Print
    2010 Map of Ottawa, 2010 Print
    2010 Ottawa
    2010 Print · USGS
    Covers Union Township, including Ottawa, Glandorf, and other nearby areas

  17. 2010 Map of Miller City, 2010 Print
    2010 Map of Miller City, 2010 Print
    2010 Miller City
    2010 Print · USGS
    Covers Union Township, including Miller City, Palmer Township, and other nearby areas

  18. 2013 Map of Columbus Grove, 2013 Print
    2013 Map of Columbus Grove, 2013 Print
    2013 Columbus Grove
    2013 Print · USGS
    Covers Union Township, including Ottawa, Columbus Grove, and other nearby areas

  19. 2013 Map of Kalida, 2013 Print
    2013 Map of Kalida, 2013 Print
    2013 Kalida
    2013 Print · USGS
    Covers Union Township, including Kalida, Seitz, and other nearby areas

  20. 2013 Map of Miller City, 2013 Print
    2013 Map of Miller City, 2013 Print
    2013 Miller City
    2013 Print · USGS
    Covers Union Township, including Miller City, Palmer Township, and other nearby areas

  21. 2013 Map of Ottawa, 2013 Print
    2013 Map of Ottawa, 2013 Print
    2013 Ottawa
    2013 Print · USGS
    Covers Union Township, including Ottawa, Glandorf, and other nearby areas

  22. 2016 Map of Miller City, 2016 Print
    2016 Map of Miller City, 2016 Print
    2016 Miller City
    2016 Print · USGS
    Covers Union Township, including Miller City, Palmer Township, and other nearby areas

  23. 2016 Map of Ottawa, 2016 Print
    2016 Map of Ottawa, 2016 Print
    2016 Ottawa
    2016 Print · USGS
    Covers Union Township, including Ottawa, Glandorf, and other nearby areas

  24. 2016 Map of Kalida, 2016 Print
    2016 Map of Kalida, 2016 Print
    2016 Kalida
    2016 Print · USGS
    Covers Union Township, including Kalida, Seitz, and other nearby areas

  25. 2016 Map of Columbus Grove, 2016 Print
    2016 Map of Columbus Grove, 2016 Print
    2016 Columbus Grove
    2016 Print · USGS
    Covers Union Township, including Ottawa, Columbus Grove, and other nearby areas

Showing maps 1-25 of 33

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