Prehistoric and early medieval
Hillforts, chambered tombs, standing stones and the royal crannog.
Site · early medieval royal residence
Llangorse Crannog
The only crannog in Wales, built for a king of Brycheiniog in the 890s, burned by a Mercian army in 916. The timbers are dated to within four years.
Site · Iron Age hillfort
Pen y Crug
Four ramparts on a hill above Brecon, an hour's walk from the town centre, and the clearest hillfort earthworks in Powys for the effort involved.
Site · hillfort
The Breiddin
A hillfort occupied from the late Bronze Age, standing over the Severn plain, and quarried away on one side while it was being excavated on the other.
Site · hillfort
Craig Rhiwarth
One of the largest hillforts in Montgomeryshire, on a crag above Llangynog, with the remains of dozens of round houses inside it and lead mines cut into the slope below.
Site · Neolithic burial monuments
The Black Mountains Chambered Tombs
A tight group of Neolithic burial monuments round Talgarth and Crickhowell, one of them with medieval graffiti cut into its stones by people who already thought it was ancient.
Site · standing stones
Maen Llia and the Fforest Fawr Stones
A slab over three metres high standing alone in an empty pass, and a scatter of Bronze Age monuments across the moor around it.