From Builth Wells take the A481 north-east. When you come to the junction with the A44 turn right towards Radnor. You will shortly come to the hamlet of Llanfihangel Nant Melan. On the left hand side of the road (north) before you reach the church and pub is the barrow.
The barrow is no more than a small grass ‘bump’ on top of a conical grass mound.
Not one to go out of your way for.
A mound, 9m in diameter and 0.5m high, set upon a knoll.