Pen-y-crug from the edge of Brecon via Maen-du Well. The upper slopes are open access for walkers. A small car park off the minor road to its north provides a convenient starting point for many walkers. The summit is crowned by an impressive Iron Age hillfort, one of several in the Usk Valley. There are the remains of a brick and tile works dating from Victorian times on its southeastern flank. Pen-y-crug Pen-y-crug is a hill in the Brecon Beacons National Park in the county of Powys, south Wales. It is commonly referred to locally as simply 'The Crug' ("pronounced cree-g").
Pen y Gaer Pen y Gaer Pen y Gaer (or Pen-y-gaer) is the location of a Bronze Age and Iron Age hillfort near the village of Llanbedr-y-Cennin in the Conwy valley, Wales. A natural defensive site, it had a long history of occupation, indicated by the complexity of the defences, which were amended over time. There are two Bronze Age cairns on the north-west slope, and extensive prehistoric and later field systemsare nearby. The remains as seen today are mostly of Iron Age origin, but further earthworks, probably of medieval origin, lie on the south-eastern slopes. The remains of the two walls of