Moel y Gamelin is a hill in Denbighshire, North Wales, near the town of Llangollen. It is a summit of Llantysilio Mountain, at the mountain's eastern end, overlooking the Horseshoe Pass, and reaches an elevation of 577 metres (1,893 ft) above sea level. At its top is a round cairn, of unknown date, measuring about 30 metres (100 ft) in diameter and 1.8 metres (6 ft) high.[1]