 Although known locally simply as 'Llanarmon', the addition of 'Dyffryn Ceiriog' or 'DC' is necessary to distinguish it from other villages named Llanarmon, such as Llanarmon-yn-Iâl, which was also in Denbighshire, and the remote rural parish of Llanarmon Mynydd Mawr, around 5 miles to the south on the high slopes of the Tanat Valley.The village grew up at the intersection of several drovers' roads which forded the River Ceiriog.It still has two inns, the "Hand" and the "West Arms", which originally served drovers taking their flocks to market