Location and coordinates are for the approximate centre of Gwyddelwern within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Gwyddelwern, par. and vil. with ry. sta., NE. Merioneth, 2½ m. N. of Corwen, 9127 ac., pop. 1445; P.O.