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Sites and Monuments Record · Ireland

Ringfort - rath

Cranmore (Costello By.), County Mayo, Ireland

Ordnance Survey six-inch map, 2nd edition (1888–1915) covering the location of Ringfort - rath, Cranmore, 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
Cranmore (Costello By.)
County
Mayo
Country
Ireland
First-edition OS map
Indicated
Latest-edition OS map
Hachured
Coordinates
53.94941, -8.69366
SMR number
MA063-035----

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

In rough, rocky pasture, located on a rise, which provides good views. There is a small stream 8-10m to SW, which curves around the rise, flowing to NW.
This rath is shown on the 1838 OS 6-inch map as a circular enclosure; by the time of the 1920 edition it had been truncated along its E edge by a N−S road.
It now consisting of a slightly raised, D-shaped area (32.4m N−S; c. 29m E-W to road) defined on the curving side SSE−NNE by a bank/scarp, and on the straight side at E by a NNE−SSW road, which has truncated the E edge of the rath. The enclosing bank (Wth c. 4m at NW, 3.3m at S; int. H 0.7m at NW, 0.25m at S; ext. H 1.9m at NW, 1.1m at S) retains a low internal lip on the W arc, but is largely reduced to a scarp. Outside the bank at NW, there is a short length (L 3m) of possible external bank, evident as a low, stony heather-covered rise (Wth 2m; H 0.4-0.55m). The intervening gap/possible fosse between the external bank and the rath is 2m wide.
The interior is level. There is now no obvious entrance gap; it is likely to have been on the truncated E side. In the NW quadrant, a low bank (Wth 1.4m; H 0.4-0.55m), extends from the inner face of the rath bank in a shallow arc for 3m to E.
A drystone field wall/property boundary, on a roughly E−W axis cuts across the N part of the rath. To N of the wall, the interior is scattered with boulders and densely covered in blackthorn and ferns; to S of the wall, the interior is grassy with ferns and a few blackthorns. There is rath (MA063-034----) 120m to NW, and another (MA063-036----) 100m to NE.

Compiled by: Jane O’Shaughnessy

Date of upload: 10 September 2020

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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