Old Maps of Union Township, Ohio for Metal Detecting

Plan your next treasure hunt with 34 historic maps of Union Township. 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 Union Township.


Union Township, OH maps

(34)
  1. 1914 Map of Mechanicsburg, 1954 Print
    1914 Map of Mechanicsburg, 1954 Print
    1914 Mechanicsburg
    1954 Print · USGS
    Champaign County at the start of the Great War was a thriving landscape of rail-connected villages and one-room schoolhouses. Genealogists can trace family footprints at Pretty Prairie School, the ancient Indian Mound, or along the busy tracks of the Erie RR in North Lewisburg.

  2. 1916 Map of Mechanicsburg, 1936 Print
    1916 Map of Mechanicsburg, 1936 Print
    1916 Mechanicsburg
    1936 Print · USGS
    Champaign County at the height of the rail era shows a landscape where small villages and rural schoolhouses thrived alongside major transit corridors. Genealogists and historians can trace family locations near landmarks like Indian Mound, Catawba Station, and Five Points School.

  3. 1916 Map of Milford Center, 1948 Print
    1916 Map of Milford Center, 1948 Print
    1916 Milford Center
    1948 Print · USGS
    The rural expanse of central Ohio is captured here in the mid-nineteen-tens, centered on the rail junctions of Marysville and Milford Center. Genealogists and local historians can trace family roots through numerous country schools like Minoque School and the Industrial Home for Women.

  4. 1944 Map of Mechanicsburg
    1944 Map of Mechanicsburg
    1944 Mechanicsburg
    1944 Print · USGS
    Champaign County and its borders with Logan, Union, and Clark counties are shown here during the peak of the rail era in the 1940s. Genealogists and historians can locate numerous rural schools like Pretty Prairie Sch and landmarks such as the Indian Mound and White Cem.

  5. 1944 Map of Milford Center
    1944 Map of Milford Center
    1944 Milford Center
    1944 Print · USGS
    Central Ohio during the war years shows a landscape of busy rail junctions and fertile creek valleys. Genealogists and local historians can locate old rural schoolhouses like Lombard Sch and trace the paths of the Pennsylvania railroad through Milford Center.

  6. 1950 Map of Marion
    1950 Map of Marion
    1950 Marion
    1950 Print · USGS
    Central Ohio was a powerhouse of rail and river industry at the mid-century point, serving as a vital corridor between the Great Lakes and the Ohio River valley. Genealogists and rail historians can trace the paths of the Erie RR and Nickel Plate Road through towns like Bucyrus, Galion, and Upper Sandusky.

  7. 1961 Map of Plumwood, 1962 Print
    1961 Map of Plumwood, 1962 Print
    1961 Plumwood
    1962 Print · USGS
    The Madison County countryside comes into focus in the early sixties, showing a landscape defined by drainage ditches and rural townships. Researchers can trace family sites near Chuckery, identify small rural burial grounds like Phellis Cem, or locate the St Pauls Sch.

  8. 1961 Map of North Lewisburg, 1962 Print
    1961 Map of North Lewisburg, 1962 Print
    1961 North Lewisburg
    1962 Print · USGS
    Champaign and Union Counties appear here in the early sixties, showing a landscape defined by traditional family farming and crossing rail lines. Researchers can trace ancestral sites at Jenkins Chapel, Immaculate Conception Ch, and numerous family burial grounds like Graham Cem.
    3 unique versions available

  9. 1961 Map of Mechanicsburg, 1962 Print
    1961 Map of Mechanicsburg, 1962 Print
    1961 Mechanicsburg
    1962 Print · USGS
    Mechanicsburg was a vital rail and road junction in the early 1960s, surrounded by a landscape of family farms and rural hamlets. Researchers can trace ancestral roots through numerous local landmarks like Maple Grove Cemetery, Treacle Ch, and the small settlement of Catawba.
    2 unique versions available

  10. 1961 Map of Milford Center, 1962 Print
    1961 Map of Milford Center, 1962 Print
    1961 Milford Center
    1962 Print · USGS
    Union County enters the 1960s with a landscape defined by crossing railroads and historic creek-side settlements. Researchers can locate the State Reformatory for Women, several family cemeteries like Connor Cem, and a traditional Covered Bridge.
    3 unique versions available

  11. 1962 Map of Marion
    1962 Map of Marion
    1962 Marion
    1962 Print · USGS
    Central Ohio during the post-war era showcases a dense network of railroad towns and emerging interstate highways. Genealogists can trace family roots in smaller settlements like Houcktown and Marseilles or locate landmarks near Indian Lake.

  12. 1966 Map of Marion, 1968 Print
    1966 Map of Marion, 1968 Print
    1966 Marion
    1968 Print · USGS
    Central Ohio in the mid-sixties is captured during a period of rapid highway expansion and industrial connectivity. Genealogists and historians can trace rail-and-river networks through towns like Marion, Urbana, and Mount Vernon, or locate landmarks such as Malabar Farm and Black Hand Rock.
    3 unique versions available

  13. 1986 Map of Bellefontaine
    1986 Map of Bellefontaine
    1986 Bellefontaine
    1986 Print · USGS
    West Central Ohio in the mid-1980s reveals a landscape of growing metropolitan fringes and established rural centers. Researchers can trace historic cemeteries and civic institutions from Oak Grove Cem to the State Reformatory For Women and Cedar Bog State Nature Preserve.

  14. 1992 Map of Bellefontaine
    1992 Map of Bellefontaine
    1992 Bellefontaine
    1992 Print · USGS
    West-central Ohio in the early nineties reveals a blend of high-plateau geography and growing suburban corridors near the state capital. Genealogists can trace family connections to landmarks like Mount Tabor Church, Oak Grove Cemetery, and the high ground of Campbell Hill.

  15. 2010 Map of Milford Center, 2010 Print
    2010 Map of Milford Center, 2010 Print
    2010 Milford Center
    2010 Print · USGS
    Union County's agricultural heartland is documented here just after the turn of the millennium, centered on the historic crossroads at Milford Center. Genealogists can trace family burial sites across the landscape, from Oakdale Cemetery to the remote Robinson Cemetery near Bridgeport.

  16. 2010 Map of Mechanicsburg, 2010 Print
    2010 Map of Mechanicsburg, 2010 Print
    2010 Mechanicsburg
    2010 Print · USGS
    Mechanicsburg and its surrounding rural townships appear here in the early twenty-first century, showing a landscape defined by traditional farming and small-town roots. Researchers can trace historic family names through Hopewell Cemetery, find local landmarks like the Mechanicsburg Post Office, and follow the winding path of Treacle Creek.

  17. 2010 Map of Plumwood, 2010 Print
    2010 Map of Plumwood, 2010 Print
    2010 Plumwood
    2010 Print · USGS
    Madison County, Ohio, maintains its rural character in the early twenty-first century as small crossroads communities dot the drainage of Little Darby Creek. Genealogists and local historians can trace family roots through the Bigelow Pioneer Cemetery, Phellis Cemetery, and the historic Irwin Post Office.

  18. 2010 Map of North Lewisburg, 2010 Print
    2010 Map of North Lewisburg, 2010 Print
    2010 North Lewisburg
    2010 Print · USGS
    Champaign County at the turn of the decade reflects a landscape of enduring agricultural roots and scattered village life. Genealogists can trace family names through numerous rural burial sites like Sodom Cemetery, Jenkins Chapel Cemetery, and Mead Cemetery.

  19. 2013 Map of Plumwood, 2013 Print
    2013 Map of Plumwood, 2013 Print
    2013 Plumwood
    2013 Print · USGS
    Madison County farmland is meticulously mapped in the early 2010s, revealing a landscape of historic cemeteries and agricultural drainages. Researchers can locate family landmarks like Phellis Cem, the Rosedale Bible Coll, and the Bigelow Cemetery Prairie.

  20. 2013 Map of North Lewisburg, 2013 Print
    2013 Map of North Lewisburg, 2013 Print
    2013 North Lewisburg
    2013 Print · USGS
    The rural borderlands of Champaign and Union counties come into focus in the early 2010s, showing a landscape defined by small villages and historic burial grounds. Family historians can locate several resting places like Maple Grove Cem and Martin Cem alongside local landmarks like Brush Lake.

  21. 2013 Map of Milford Center, 2013 Print
    2013 Map of Milford Center, 2013 Print
    2013 Milford Center
    2013 Print · USGS
    Union County during the early 2010s shows a landscape of growing towns and quiet rural outposts along the Big Darby Creek. Genealogists and local historians can locate several burial sites, such as Oakdale Cem and Buck Run Cem, while tracing the expansion of Marysville.

  22. 2013 Map of Mechanicsburg, 2013 Print
    2013 Map of Mechanicsburg, 2013 Print
    2013 Mechanicsburg
    2013 Print · USGS
    Mechanicsburg and the surrounding Ohio countryside are captured here in the early twenty-first century as a landscape of rural villages and historic family plots. Researchers can trace ancestral roots at Maple Grove Cem or Hopewell Cem and explore the waterways of Little Darby Cr.

  23. 2016 Map of Milford Center, 2016 Print
    2016 Map of Milford Center, 2016 Print
    2016 Milford Center
    2016 Print · USGS
    Union County during the mid-2010s shows the persistent agricultural character of the Ohio countryside alongside the suburban growth of Marysville. Genealogists can trace family names through numerous burial sites like Oakdale Cem and McDonald Cem or locate historic crossings at Reed Bridge.

  24. 2016 Map of Plumwood, 2016 Print
    2016 Map of Plumwood, 2016 Print
    2016 Plumwood
    2016 Print · USGS
    Madison and Union Counties appear as a detailed network of agricultural settlements and drainage systems in the mid-2010s. Genealogists and local historians can locate several family-named burial grounds, including Plumwood Cem and Guy Cem, alongside rural centers like Rosedale and Resaca.

  25. 2016 Map of Mechanicsburg, 2016 Print
    2016 Map of Mechanicsburg, 2016 Print
    2016 Mechanicsburg
    2016 Print · USGS
    Champaign County land use and drainage are captured here in the mid-2010s, centered on the historic village of Mechanicsburg. Researchers can locate numerous family and community burial sites like Maple Grove Cem and Nation Chapel among the network of creeks and ditches.

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