Penycloddiau

Penycloddiau (Welsh for "hill of the trenches") is a hill in Denbighshire, North Wales and is the northernmost marilyn in the Clwydian Range. Offa's Dyke Path crosses the summit, and the Clwydian Way skirts the western slopes. Like Foel Fenlli further south, Penycloddiau has an iron-age hill fort around the summit area. At 26 hectares (64 acres), it is one of the largest hill forts in Wales.