Old Maps of Onomy, County Monaghan

Explore 8 old maps of Onomy, spanning from 1834 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 Onomy 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.
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  • 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 Onomy to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.


Onomy, County Monaghan maps

(8)
  1. 1834 Map of Armagh - Sheet 27, 1863 Print
    1834 Map of Armagh - Sheet 27, 1863 Print
    1834 Armagh - Sheet 27
    1863 Print · USGS
    Covers Onomy, including Castleblayney, Cullyhanna, and other nearby areas

  2. 1835 Map of Monaghan - Sheet 25, 1836 Print
    1835 Map of Monaghan - Sheet 25, 1836 Print
    1835 Monaghan - Sheet 25
    1836 Print · USGS
    Covers Onomy, including Castleblayney, Cullaville, and other nearby areas
    2 unique versions available

  3. 1835 Map of Armagh - Sheet 27, 1837 Print
    1835 Map of Armagh - Sheet 27, 1837 Print
    1835 Armagh - Sheet 27
    1837 Print · USGS
    Covers Onomy, including Castleblayney, Cullyhanna, and other nearby areas

  4. 1835 Map of Monaghan - Sheet 20, 1837 Print
    1835 Map of Monaghan - Sheet 20, 1837 Print
    1835 Monaghan - Sheet 20
    1837 Print · USGS
    Covers Onomy, including Castleblayney, Oram, and other nearby areas
    2 unique versions available

  5. 1907 Map of Armagh - Sheet 27, 1909 Print
    1907 Map of Armagh - Sheet 27, 1909 Print
    1907 Armagh - Sheet 27
    1909 Print · USGS
    Covers Onomy, including Castleblayney, Cullyhanna, and other nearby areas

  6. 1908 Map of Monaghan - Sheet 20, 1910 Print
    1908 Map of Monaghan - Sheet 20, 1910 Print
    1908 Monaghan - Sheet 20
    1910 Print · USGS
    Covers Onomy, including Castleblayney, Oram, and other nearby areas

  7. 1908 Map of Monaghan - Sheet 25, 1910 Print
    1908 Map of Monaghan - Sheet 25, 1910 Print
    1908 Monaghan - Sheet 25
    1910 Print · USGS
    Covers Onomy, including Castleblayney, Cullaville, and other nearby areas

  8. 1956 Map of Armagh - Sheet 27, 1959 Print
    1956 Map of Armagh - Sheet 27, 1959 Print
    1956 Armagh - Sheet 27
    1959 Print · USGS
    Covers Onomy, including Castleblayney, Cullyhanna, and other nearby areas

End of results
Showing maps 1-8 of 8

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