On the Ballyliffin Road, a short distance from the Donagh Cross, the old Mass rock can be found. A Mass rock is a rock used as an altar in mid-17th century Ireland.
Mass was said in this woodland setting during Penal times, when observing mass was both difficult and dangerous. Times of Mass were not scheduled and word of mouth was used to communicate when they were to happen.
The white cross on top of the altar stone came from the old church in Carndonagh.