Fairy fort / earthen ringfort in Clonisboyle

Situated on top of a NW-SE drumlin ridge. This is a grass and rush-covered circular area (int. diam. 34.6m E-W; 32.3m N-S) that slopes down slightly to the E, which is defined by a complete but overgrown earthen bank. This is separated by a fosse from the remnants of an outer earthen bank NNE-E. There is an entrance through the inner (Wth of base 2.1m) and outer (Wth of base 1.7m) banks and a causeway (Wth 3m; H 0.15m) at E. The rath has become overgrown since 1968. 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: 24 July 2017

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