Directions: Take the very minor road north midway between Baglan and Cwmafan and eventually you come to a bridle way on the right; which presumably gives access to the transmitters on top of the hill? (Foel Fynyddau) Park here. Opposite you will see a metal field gate. Hop over the gate and head up the steep hill. You will have to cross two barbed wire fences and towards the top of the hill you will see a ruined stone field wall. Once over the wall, look for a rust metal field gate, ahead, to your right. Once you get to the gate the remains of Buarth-Y-Gaer Hillfort are easily seen in the next field. Unfortunately you have to climb over yet another barbed wire fence!
It is a steep, uphill 15 minute walk to get to the site from the car.
The enclosure is quite large and the single rampart is pretty well preserved, standing acout 0.5 metres high from the inside and between 1.5 and 2 metres high when standing in the ditch. The inside of the enclosure is quite 'lumpy bumby'.
Due to the steepness of the climb and the number of fences to climb over I would suggest that this is a site for the dedicated and those fairly fit and agile!
Coflein describes the site:
Buarth-y-Gaer is an oval enclosure, c.140m E-W by 104m, set about the summit of Mynydd-y-Gaer, defined by a bank and ditch, with a W facing entrance. A cairn (Nprn307229) crowns the highest point of the interior.