Use two fingers to pan or zoom the map
Location and coordinates are for the approximate centre of Merthyr Mawr within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Merthyr-Mawr, par. and vil., Glamorgan, on river Ogwr, 2 miles SW. of Bridgend, 2262 ac. and 19 tidal water and 422 foreshore, pop. 120; P.O.; in vicinity of vil. is Merthyr-Mawr House, seat.