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Sites and Monuments Record · Ireland

Earthwork

Glenballythomas, County Roscommon, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Earthwork, 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
Not indicated
Latest-edition OS map
Not indicated
Coordinates
53.79725, -8.31055
SMR number
RO022-057028-

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

On the S-facing slope of Rathcroghan plateau. Described as a mound (diam. c. 20m) with the entrance to souterrain (RO022-057029-) in the interior (Ferguson 1872, 117). It is not visible at ground level, and a NW-SE lane lies just N of the souterrain entrance. Ring-barrow (RO022-057025-) is c. 120m to the NW. (Knox 1914, 35; Herity 1983, 132, 1987, 138; Waddell 1983, 33)
Geophysical survey recorded anomalies around the entrance to the souterrain suggesting a circular area (diam. c. 17m), but no evidence of an enclosing bank or fosse, or of any internal structures was recorded. (Waddell et al. 2009, 79-89)

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

Compiled by: Michael Moore

Date of upload: 24 August 2010

References

Waddell, J. 1983 Rathcroghan - a royal site in Connaught. Journal of Irish Archaeology 1, 21-46.

Waddell, J., Fenwick, J. and Barton, K. 2009 Rathcroghan: archaeological and geophysical survey in a ritual landscape. Dublin. Wordwell.

Herity, M. 1987a A survey of the royal site of Cruachain in Connaught. 3. Ringforts and ecclesiastical sites. Journal of the Royal Society of Antiquaries of Ireland 117, 125-41.

Herity, M. 1983 A survey of the royal site of Cruachain in Connacht, 1. Introduction, the monuments and topography. Journal of the Royal Society of Antiquaries of Ireland 113, 121-42.

Knox, H.T. 1914 Ruins of Cruachain Ai. Journal of the Royal Society of Antiquaries of Ireland 44, 1-50.

Ferguson, S. 1872 On ancient cemeteries at Rathcroghan and elsewhere in Ireland (as affecting the question of the site of the cemetery at Tailtin). Proceedings of the Royal Irish Academy 15C, 114-28.

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
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