Access unclearno public right of way confirmed — check locally before setting out
Earthworks onlybanks, ditches and platforms — read the ground, not walls
Pen y Crug is an Iron Age hillfort on the hill just above Brecon, its concentric earthwork ramparts still clear on the ground. The 360-degree view is the draw, taking in the town below and the main Beacons ridge to the south. A steady walk up from the edge of Brecon reaches it, on open hillside paths. A good short outing if you want the high ground without a full mountain day.
