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Sites and Monuments Record · Ireland

Souterrain

Garraun (Costello By.), County Mayo, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Souterrain, Garraun, County Mayo, 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
Garraun (Costello By.)
County
Mayo
Country
Ireland
First-edition OS map
Not indicated
Latest-edition OS map
Souterrain
Coordinates
53.73741, -8.69805
SMR number
MA103-017----

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 1753 map "Mappa geographica Regni Hiberniae" (David Rumsey Map Collection, Stanford Libraries).

Historical maps covering this location

  • 1753 · Mappa geographica Regni Hiberniae (David Rumsey Map Collection, Stanford Libraries)
  • 1790 · Composite: 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 pasture, on a low narrow ridge flanked at N and S by lowlying, wettish pasture and bog. There are good views in all directions.
Not indicated on the 1838 OS 6-inch map; marked as ‘Souterrain’ on the 1916 edition. Irregular-shaped pit (c. 4m N−S; 3m E−W; D 1m) bordered on the N side by a low mound (2m N−S; 3m E−W; H 0.6m) of earth, partly obscured by clumps of brambles. A lintelled opening is exposed in the SW side of the pit, with a large slab, probably a displaced lintel, lying adjacent. The opening reveals a small, semicircular drystone chamber (1.4m E−W; c. 1m N−S; H c. 0.6m) which is partly filled with soil. According to local tradition, the souterrain has two chambers.

Compiled by: Jane O’Shaughnessy

Date of upload: 27 October 2022

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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