What is recorded here

Bivallate enclosure is a fairy fort or earthen ringfort in Doon (roscommon By.), County Roscommon, Ireland. It occupies the western end of a low east-west drumlin ridge and presents a circular grass-covered area nearly forty metres across. A low earthen bank surrounds this centre, while a shallow fosse separates it from a wider outer bank. No original entrance remains visible within the eighty-five-metre east-west span.

At the W end of a low E-W drumlin ridge. Circular grass-covered area (diam. c. 40m) defined by a low earthen bank (Wth 7.9-8.4m; int. H 0.1-0.2m; ext. H 0.1-0.2m) separated by a fosse (Wth of base 4m; D 0.2m) from an outer bank (Wth 10-12m; ext. H 0.1-0.2m). There is no identifiable original entrance (max. ext. diam. 85m E-W). Compiled by: Michael Moore Date of upload: 24 August 2010

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