Fairy fort / earthen ringfort in Aghaderry

Situated on top of a drumlin. This is a circular overgrown area (int. diam. 30.5m ENE-WSW) that slopes down slightly to the SE, which is defined by an earthen bank (at S: Wth of base 4.8m; Wth of top 0.8m; int. H 0.7m; ext. H 2.1m) and an outer fosse (at S: Wth of top 3.8m; Wth of base 1.6m; ext. D 0.8m) that had been deepened NW-E-SE. There is an entrance (Wth of base 1.6m) at ESE that may be modern. The above description is derived from the published 'Archaeological Inventory of County Monaghan' (Dublin: Stationery Office, 1986). In certain instances the entries have been revised and updated in the light of recent research. Date of revision: 25 July 2017

A local fairy fort (ringfort/rath); wider significance not recorded.