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Sites and Monuments Record · Ireland

Souterrain

Glenballythomas, County Roscommon, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Souterrain, Glenballythomas, County Roscommon, with a pin at the register's coordinates
Ordnance Survey six-inch map, 2nd edition (1888–1915), covering this location. Courtesy of the National Library of Scotland. The pin is ours, placed from the register's coordinates.

The record

Townland
Glenballythomas
County
Roscommon
Country
Ireland
First-edition OS map
Grave
Latest-edition OS map
Cave
Coordinates
53.79501, -8.30761
SMR number
RO022-057036-

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

4 historical maps cover this location, the earliest the 1790 map "Composite: Ireland." (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1790 · Composite: Ireland. (David Rumsey Map Collection, Stanford Libraries)
  • 1811 · Ireland. (David Rumsey Map Collection, Stanford Libraries)
  • 1869 · Ireland. (David Rumsey Map Collection, Stanford Libraries)
  • 1891 · Ireland 16 (David Rumsey Map Collection, Stanford Libraries)

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This record in the National Monuments Service's Historic Environment Viewer ↗

The National Monuments Service's description

In a quarry (diam. 4m; D 1m) at the W edge of the inner enclosure of Relig na Ri (RO022-057035-). Investigations of the interior of the concentric enclosure had been undertaken by Charles O'Conor of Mount Allen in the late 18th century when the souterrain was opened, The opening (Wth 1.45m; H 0.85m) leads to a blocked lintelled passage (L 4m plus).

This is a National Monument in state ownership: No. 473

Compiled by: Michael Moore

Date of upload: 24 August 2010

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Sites and Monuments Record data: National Monuments Service, Government of Ireland, licensed under CC BY 4.0. Record text is reproduced unchanged. National Monuments Service, Government of Ireland · CC BY 4.0
All Souterrain in Roscommon All County Roscommon records All Ireland Heritage registers Historical markers (US)National Register of Historic Places (US)
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