point in the Berwyn range, and the highest point in Wales outside the National Parks. Cadair Bronwen and Foel Cedig to the west are the two Marilyns that form the Berwyn range.

The mountain lies on main ridge of the Berwyn range which runs north-south. The eastern side of the ridge is characterised by steep drops and crags including Craig Berwyn north of the summit and Craig y Llyn to the south. Craig y Llyn forms the headwall of a cwm,