Llechrwyd hillfort is a bow-shaped enclosure, about 130m north-east to south-west by up to 45m, occupying a prominent ridge-end position. On the south-east it rests on steep natural slopes. It is defined by a billow of rampart on the north-west with a centrally placed inturned entrace. Two lines of bank & ditch cut across the ridge on the north-east.
Monuments such as this are generally considered to be Iron Age, although they were often maintained and sometimes built anew, across and beyond the Roman period.