Other current and historical names
Location and coordinates are for the approximate centre of Merthyr Cynog within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Merthyr-Cynog, par. and vil., in co. and 8 miles NW. of Brecknock, 21,278 ac., pop. 734.