"About eight miles from the Four Masters’ School in Byrne’s mountain on the old foot-road across Croney to Lough Derg is a Holy Well called [Sliab Dub ?]. ( ½ ml. from the Donegal-Tyrone border)
Local tradition says that as Saint Patrick was going…
“From Pettigo to Lough Dergh, the distance is about three miles, over bog and mountain. It is a scramble all the way, endeavouring to avoid the marsh and bog land, that cannot, however, be avoided..."
"Pettigo. (July 23, 1824). A country road leads in this direction a mile: after leaving which we passed over the mountains following a path, which the number of devotees who visit the Island, had marked too distinctly to be mistaken..."
Rathnacross (DG105-002001-), a circular area enclosed by a stone and earthen bank c. 0.5m high. A gap in the NE sector affords the only possible site for an entrance. There is a semicircular hollow (2.5m in diam. and 0.8m deep) in the SE quadrant…