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Sites and Monuments Record · Ireland

Megalithic tomb - court tomb

Glenballythomas, County Roscommon, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Megalithic tomb - court tomb, 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
Cloghannagorp
Coordinates
53.79131, -8.31139
SMR number
RO022-057043-

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 a slight rise on the floor of a NW-SE valley at the bottom of the S-facing slope of Rathcroghan ridge. Two orthostats indicate the S wall of an E-W gallery (L c. 2.7m), while a third forms the jamb at W. Two other stones to the W may be a further chamber of the gallery. (Knox 1914a, 37-8; de Valera and Ó Nualláin 1972, 35; Herity 1983, 131, Glenballythomas 23; Waddell 1983, 33, No. 17)

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

Compiled by: Michael Moore

Date of upload: 24 August 2010

See linked document with details from Ruaidhrí de Valera and Seán Ó Nualláin, Survey of the Megalithic Tombs of Ireland. Volume III. Counties Galway, Roscommon, Leitrim, Longford, Westmeath, Laoighis, Offaly, Kildare, Cavan. (Dublin: Stationery Office, 1972).

References

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

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.

de Valera, R. and Ó Nualláin, S. 1972 Survey of the megalithic tombs of Ireland, vol. 3, Counties Galway, Roscommon, Leitrim, Longford, Westmeath, Laoighis, Offaly, Kildare, Cavan. Dublin. Stationery Office.

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

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 Megalithic tomb - court tomb in Roscommon All County Roscommon records All Ireland Heritage registers Historical markers (US)National Register of Historic Places (US)
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