Pumlumon Fawr is a Hewitt of 752.8 m in Cardiganshire [Ceredigion]. It is also on the county tops list, as the highest point of its historic county.
The key col lies 57.6 km away to the south, at 227 m. Its closest neighbour in this register, Pen y Garn, is 9.8 km away. It counts towards four lists: Hewitts, Nuttalls, Marilyns and county tops. Its nearest higher summit, Mynydd Pencoed (766 m, 26.2 km north), is a listed top not profiled here. Its other name is Plynlimon. The summit is marked by a trig point.