What is recorded here

Enclosure in Carrowcor (costello By.) is an elongated raised earthwork in County Mayo pasture, measuring 47 metres NE-SW and 25 metres NW-SE, with rounded corners and a scarp reaching 1.4 metres at SE. It sits just below a ridge top on a SE-facing slope, overlooking bog and pasture, while a man-made underground passage lies 45 metres to S. The SE scarp is sharply defined and slightly concave, showing past cutting and modification, whereas the NW side has been partly levelled into a low rise. Its unusual length hints at a rath extended or reshaped across generations, absorbing boundary changes and human use until it became a quiet oblong shadow in the field.

In pasture, located on fairly level terrace on a SE-facing slope, just below the top of a ridge. The slope rises gently to NW and falls away steeply to S giving expansive views over pasture and expanses of bog. Not indicated on the 1838 OS 6-inch map; shown on the 1916 edition as a subrectangular hachured enclosure incorporated into a field boundary at NW−N. Raised subrectangular or oblong area (47m NE–SW; 25m NW–SE), with rounded corners, defined by a scarp (H 0.9 at SW; 1.4m at SE). A few large stones protrude from the sod on the scarp slope at SE and SW –some of these may be field clearance stones. The scarp on the SE side is sharply defined and is slightly indented or concave in plan; it has clearly been modified and cut into in the past. On the NW side the scarp has been partly levelled, surviving only as a low rise. A field boundary (shown on the 1916 OS 6-inch map) which intersected with the N end of the enclosure has been removed. The interior is grassy and featureless, with a slight slope from centre down to NE. This is an enclosure is unusually elongated in shape; it may be a rath that has been extended or modified. There is a Man-made underground passage (MA102-064----) c. 45m to S. Compiled by: Jane O’Shaughnessy Date of upload: 23 September 2022

This remains an important historical record, but the official description says the monument is no longer visible or has been destroyed. The monument record does not grant public access. Check the route and ask the landowner before entering private land.