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Sites and Monuments Record · Ireland

Ringfort - cashel

Magheraboy (Costello By.), County Mayo, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Ringfort - cashel, Magheraboy, 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
Magheraboy (Costello By.)
County
Mayo
Country
Ireland
First-edition OS map
Not indicated
Latest-edition OS map
Hachured
Coordinates
53.87490, -8.66128
SMR number
MA074-009----

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)
  • 1857 · 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, located on a N-facing slope, with a stream is c. 125m to N. There are good views along the small stream valley.
Circular area (c. 32m E–W; c. 33m N–S) enclosed by a broadly slumped stone bank or scarp.
The enclosure has been built up on the downslope N half to compensate for the natural slope, and is defined here by a stony scarp (Wth c. 4m; ext. H 1.5m at E, c. 1m at W), topped with a jumble of loose stone and by remnants of a later field wall (Wth 0.7m) which was built on top of the stone bank. Outside the scarp on the N half is a sloping stony terrace or berm (Wth c. 6m). On the upslope S half, the stone bank (Wth c. 9m; int. H. 1.4m; ext. H 0.3m at S) is evident as a broad, overgrowth-covered stony heap which barely rises above exterior ground level but has a pronounced internal slump.
There is a low area (Wth c. 1.7m) in the stone bank at E and another slumped/low area at W, but it is unclear if either represents an original entrance. A slight dip in ground level in the NE quadrant is defined on the S side by a slight N-facing scarp which curves NE–W. There is a local tradition of a souterrain (MA074-009001-) in the interior.
The perimeter of the cashel is thickly ringed with hawthorn, blackthorn and brambles, which also encroach on the N half of the interior. It is known locally as locally as ‘the castle’.

Compiled by: Jane O’Shaughnessy

Date of upload: 1 June 2021

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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