Sites and Monuments Record · Ireland
Megalithic tomb - court tomb
Glenballythomas, County Roscommon, Ireland
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 LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford Libraries
Shown on 4 historical map sheets, the earliest the 1790 "Composite: Ireland." (David Rumsey Map Collection, Stanford Libraries).
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
- Enclosureunder 1 mi
- Ringfort - rathunder 1 mi
- Pitfieldunder 1 mi
- Souterrainunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.