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Pen y Crug walk, Brecon

Standing on the summit of a prominent hill above the Usk Valley, Pen-y-Crug is one of the most impressive hillforts in the Brecon Beacons National Park, with views of the town of Brecon and the surrounding mountain ranges.

It can be found at a height of 331m on the Crug, a hill just outside Brecon. During the Iron Age, about 2000 years ago, Pen-y-Crug would have been a very busy place, where people lived, worked, farmed and traded.
In the 18th and 19th centuries, areas of the Crug was occupied by a brick and tile works, and worked as a tile quarry; old quarry workings and clay pits, trackways and kilns indicate the Crug was a locally important industrial site. Today the site is situated on common land and is owned and managed by the Brecon Beacons National Park Authority.

The walk to the hillfort is well worth the trip, coupling impressive archaeological remains with breathtaking and expansive views of the Central Beacons.

Distance: 2.5km (1.5miles)

The route

  1.  Maen-duWell SO039296 Start the walk from the drop off near the roundabout, where Maen-du Well is clearly marked with a brown sign post next to the red ‘no entry’ signs. Head over to Maen-du Well which dates from the mid-1700s.You will see a small stone building with a water course coming from it. Inside the building you will be able to see the well-pool – the spring is here.
  2. Looking towards the peak of Pen-y-Crug, cross the stile to the left of Maen-du Well.This leads into the next field on your route. Follow the National Park way markers more or less straight ahead and continue uphill until you reach the summit of the Crug marked by a stone pillar (trig point).This section of the walk crosses stiles and fields initially, then more open bracken covered hillside.
  3. When you are close to the top you will cross the fort’s ramparts, which today are rounded earthwork banks and ditches. These were once made of stone and earth with a wooden defensive palisade or fence, built on top. They allowed those who occupied the hillfort to defend themselves and made it very difficult for anyone to attack the settlement. Entry to the interior of the hillfort was gained through a single well-guarded entrance on the southeast side. Above ground, little survives of the round houses, stock pens and granaries that once occupied the hillfort.
  4. Pen-y-Crug SO029303.It is clear to see why Iron Age peoples chose to build a defendable settlement here. In clear weather you can see over the whole of Brecon and far beyond from the trig point at the top of Pen-y-Crug. Looking south-west, you should be able to make out the Iron-age hill fort ofTwyn-y-Gaer on the Mynydd Illtud Common. Looking south-east you should be able to make out Slwch Tump (with the mobile mast), the third of the hill for ts all visible to each other. You can also see the Black Mountains in the east and Pen y Fan and the Central Beacons to the south. Notable landmarks in Brecon are St Mary’s Church tower and the Cathedral.
  5. To return to the start point, retrace your steps and head down back towards the well.


To lengthen 4km/2.5 miles. Start your journey at Brecon Cathedral (SO 045290) then head up the hill away from the town centre.The road is signed as Pendre and changes to the B4520 (please note that Pendre Close is the wrong road). Head up the hill until you get to the last left hand turn

– Maes y Ffynnon.Take the obvious and immediate right hand turn, and follow the road until you reach a mini-roundabout. Follow the route card from the Maen-du Well section.

Return via bridle path back to the B4520 (green dashed line on the map.)

Find the route map here.

Trails can become slippery due to adverse weather conditions. Please take extra care when walking. Suitable footwear, sturdy shoes or boots with a good grip, are best worn at all times.



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