Location and coordinates are for the approximate centre of Marros within this administrative area. Geographic features and populated places may cross administrative borders.
Gazetteer of the British Isles (Edinburgh: Bartholomew, 1887). John Bartholomew
Marros, par., Carmarthenshire, on Carmarthen Bay, 6 m. SW. of Laugharne, 2574 ac. (400 water), pop. 145.