Mass-rock in the townland of Ballycollin that is listed in the report ‘Offaly Heritage at Risk’ (Offaly Historical and Archaeological Society 1978, 61). Situated in a large natural hollow close to Tobernapearla Holy Wells (OF030-017—-). The rock itself lies near the top of the NW slope of the hollow. The stone (L 1.5m ; Wth 2m; H 2.5m) is mostly buried.
118545,OF01634,MARO,OF036-083—-,OFFALY,KNOCKBARRON,NULL,0,0,46.488181429999997,-15.817314300000000,Mass-rock,NULL,NULL,https://heritagedata.maps.arcgis.com/apps/webappviewer/index.html?id=0c9eb9575b544081b0d296436d8f60f8&query=18a4b61b268-layer-9%2CSMRS%2COF036-083—-,The site of this Mass Rock was reported by a local landowner. It was situated on the eastern slopes of the hill to the west of Knockbarron hill and it overlooks a small stream. The mass rock was reported to have been located in a small hollow. The hollow was circular 4m deep and 15m in diameter. No evidence of a Mass Rock could be found.

Monument Type: Mass-rock

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