Caer Euni

Caer Euni is an Iron Age hillfort, about 2.5 miles north-east of the village of Llandderfel and about 5 miles north-east of Llyn Tegid, in Gwynedd [1]. The fort is situated on a narrow ridge, at height 365 metres [1]. It is an elongated enclosure, length about 216 metres and width 58 metres, orientated north-east to south-west, aligned with the ridge [1]. There is a rampart enclosing the inner area, with a steep slope to the south-east and ditches and counterscarps elsewhere [1]. The principal entrance is in the north-east [1]. The fort was enlarged: there is a bank, formerly the south-west end, traceable across the interior, and further defences were built to the south-west, notably a large rock-cut ditch and a rampart built with the stone from the ditch [1]. The sites of about 25 round huts, diameter 15–20 feet, have been detected, mostly in the later part of the enclosure [1].