Mass Rocks and gardens in each of the parishes within Clogher Diocese, Ireland and Northern Ireland, were recorded in a survey carried out by Rev P O'Gallachair in 1957 on behalf of the Diocese of Clogher.
There were 2 Mass Gardens and 3 Mass Rocks recorded within the survey;
Lisglasson Mass Garden - Clontibret
Doohamlet "Bothog" Mass Hut- Doohamlet
Dunfelimy Mass Rock- Annyalla Castleblayney
Lemgare Mass Rock- Clontibret
Tasson Mass Rock- Clontibret
With relation to Dunfelimy, Rev. O'Gallachair mentions the Mass Rock in Dunfelimy being ‘on the site of old church of Annyalla’. In making this reference he is picking up a point by over thirty years earlier by Fr James E McKenna in his ‘Parishes of Clogher’, Vol. I (Enniskillen, 1920, p. 527). The opinion is that there may be a mix up between a Mass Rock in Dunfelimy and perhaps a structure (usually a hut) which predated the old chapel at Annyalla which was built in the late 1790s.