Sites and Monuments Record · Ireland
Ringfort - rath
Rathmacostello, County Mayo, Ireland
The record
- Townland
- Rathmacostello
- County
- Mayo
- Country
- Ireland
- First-edition OS map
- Rathmacostello
- Latest-edition OS map
- Rathmacostello
- Coordinates
- 54.06998, -9.37041
- SMR number
- MA038-034----
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 1753 "Mappa geographica Regni Hiberniae" (David Rumsey Map Collection, Stanford Libraries).
This record in the National Monuments Service's Historic Environment Viewer ↗
The National Monuments Service's description
In undulating average pasture, located on a rise or low ridge, with a fall of ground to SE overlooking an area of wettish pasture.
This rath is named ‘Rathmacostello’ on the 1838 and 1922 OS 6-inch maps. It consists of a raised circular area (28m E–W; 27.3m N–S) defined by a bank, with remnants of an external bank survive at SE–SW. The inner bank (Wth 4.3m at NW, 3.4m at SE; int. H 0.7m at NW, 0.35m at SE; ext. H 1.45m at NW, 1.55m at SE) is largely earthen but incorporate some stone. On the inner face at NW–N stones appear to be regularly set, suggesting the remnants of a kerb. The bank is generally low internally, especially at E–S, but it retains a well defined external slope.
An external bank (Wth 2.6m; int. H 0.4m) survives in an arc at SE–SW, coinciding with the natural break of slope of the ridge. It has been removed elsewhere, but a slight undulation can still be traced, outlining its original circuit W–NE. It is shown on the 1922 OS 6-inch map as a field boundary that encircles the rath, from which other field boundaries radiate to NE and SW. A broad, flat intervening gap (Wth 5m) intervenes between it and the inner bank. The gap does not resemble a fosse, and while a fosse may have existed, no surface depression or crop mark is evident to highlight its presence. It is possible that the external bank is a later feature rather than a primary enclosing feature of the rath.
The interior of the rath is level and featureless. There is a break (Wth 1.8m) in the bank at NE.
Compiled by: Jane O'Shaughnessy
Date of upload: 25 July 2019
Nearby in the register
- Ringfort - rathunder 1 mi
- Ringfort - rathunder 1 mi
- Castle - motteunder 1 mi
- Megalithic tomb - unclassifiedunder 1 mi
Other entries of the same register within about three miles of this one, by straight line.