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Sites and Monuments Record · Ireland

Megalithic tomb - portal tomb

Mihanboy, County Roscommon, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Megalithic tomb - portal tomb, Mihanboy, 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
Mihanboy
County
Roscommon
Country
Ireland
First-edition OS map
Not indicated
Latest-edition OS map
Not indicated
Coordinates
53.41265, -8.02184
SMR number
RO051-043001-

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 low-lying, level ground at the N side of a laneway in mixed woodland with a S-N stream c. 40m to the W. The subrectangular limestone roofstone (dims 3m x 3m; T 0.6m) has subsided to the N, destroying the N side of the W-facing chamber, but one N sidestone remains. Two sidestones and the portal stone (H 2m) on the S and the septal-stone survive. A headstone (RO051-043002-) (dims 1.84m x 0.68m; T 0.15m) with an illegible inscription in false relief and the date 1748 lies c. 3m E of the tomb and is reputedly made from the missing portal stone. Archaeological testing (07E1042) c. 80m to the SW failed to produce any related material (Kieran 2010). (English 1969, 1; de Valera and Ó Nualláin 1972, 39)

See attached image taken from the S.

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).

English, N.W. 1969 Megalithic tombs near Athlone, past, present and spurious. Journal of the Old Athlone Society 1, 1-3.

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.

Kieran, E. 2010 Mihanboy: no archaeological significance. In I. Bennett (ed.), Excavations 2007: summary accounts of archaeological excavations in Ireland, 414-15, No. 1502. Dublin. Wordwell.

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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