Old Maps of Thornhill, County Monaghan

Explore 12 old maps of Thornhill, spanning from 1833 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 Thornhill changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
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  • Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
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Start exploring old maps of Thornhill to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.


Thornhill, County Monaghan maps

(12)
  1. 1833 Map of Monaghan - Sheet 8, 1863 Print
    1833 Map of Monaghan - Sheet 8, 1863 Print
    1833 Monaghan - Sheet 8
    1863 Print · Ordnance Survey
    Covers Thornhill, including Scotstown, Fermanagh and Omagh District, and other nearby areas

  2. 1834 Map of Fermanagh - Sheet 36 [with extension], 1835 Print
    1834 Map of Fermanagh - Sheet 36 [with extension], 1835 Print
    1834 Fermanagh - Sheet 36 [with extension]
    1835 Print · Ordnance Survey
    Covers Thornhill, including Smithborough, Fermanagh and Omagh District, and other nearby areas
    2 unique versions available

  3. 1834 Map of Monaghan - Sheet 8, 1837 Print
    1834 Map of Monaghan - Sheet 8, 1837 Print
    1834 Monaghan - Sheet 8
    1837 Print · Ordnance Survey
    Covers Thornhill, including Scotstown, Fermanagh and Omagh District, and other nearby areas

  4. 1835 Map of Monaghan - Sheet 12, 1837 Print
    1835 Map of Monaghan - Sheet 12, 1837 Print
    1835 Monaghan - Sheet 12
    1837 Print · Ordnance Survey
    Covers Thornhill, including Clones, Smithborough, and other nearby areas
    2 unique versions available

  5. 1835 Map of Monaghan - Sheet 9, 1837 Print
    1835 Map of Monaghan - Sheet 9, 1837 Print
    1835 Monaghan - Sheet 9
    1837 Print · Ordnance Survey
    Covers Thornhill, including Monaghan, Scotstown, and other nearby areas
    2 unique versions available

  6. 1835 Map of Monaghan - Sheet 13, 1837 Print
    1835 Map of Monaghan - Sheet 13, 1837 Print
    1835 Monaghan - Sheet 13
    1837 Print · Ordnance Survey
    Covers Thornhill, including Threemilehouse, Corcaghan, and other nearby areas
    2 unique versions available

  7. 1907 Map of Monaghan - Sheet 8, 1909 Print
    1907 Map of Monaghan - Sheet 8, 1909 Print
    1907 Monaghan - Sheet 8
    1909 Print · Ordnance Survey
    Covers Thornhill, including Scotstown, Fermanagh and Omagh District, and other nearby areas

  8. 1907 Map of Monaghan - Sheet 9, 1909 Print
    1907 Map of Monaghan - Sheet 9, 1909 Print
    1907 Monaghan - Sheet 9
    1909 Print · Ordnance Survey
    Covers Thornhill, including Monaghan, Scotstown, and other nearby areas

  9. 1907 Map of Fermanagh - Sheet 36 [with extension], 1909 Print
    1907 Map of Fermanagh - Sheet 36 [with extension], 1909 Print
    1907 Fermanagh - Sheet 36 [with extension]
    1909 Print · Ordnance Survey
    Covers Thornhill, including Smithborough, Fermanagh and Omagh District, and other nearby areas

  10. 1907 Map of Monaghan - Sheet 12, 1910 Print
    1907 Map of Monaghan - Sheet 12, 1910 Print
    1907 Monaghan - Sheet 12
    1910 Print · Ordnance Survey
    Covers Thornhill, including Clones, Smithborough, and other nearby areas

  11. 1908 Map of Monaghan - Sheet 13, 1910 Print
    1908 Map of Monaghan - Sheet 13, 1910 Print
    1908 Monaghan - Sheet 13
    1910 Print · Ordnance Survey
    Covers Thornhill, including Threemilehouse, Corcaghan, and other nearby areas

  12. 1948 Map of Monaghan - Sheet 9, 1962 Print
    1948 Map of Monaghan - Sheet 9, 1962 Print
    1948 Monaghan - Sheet 9
    1962 Print · Ordnance Survey
    Covers Thornhill, including Monaghan, Scotstown, and other nearby areas

End of results
Showing maps 1-12 of 12

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