Y Pigwn
Near Trecastle, Powys
High on the moorland near Trecastle, the outlines of two Roman marching camps, one inside the other, can still be traced. They were built by Roman armies campaigning against the Silures, and the soldiers would have dug ditches and banks each night to protect their tents.
Read the full story, see it on the map, get directions and find what else is nearby in the free Hidden Britain Atlas map.
- When
- About AD 70s
- Where
- 51.9800, -3.7100
- Group
- Roman Britain
Visiting
A moorland walk from the mountain road south of Trecastle.

The Ledger of Lost Britain
The Romans arrived in AD 43. For most people that is where the history of Britain begins. But by the time the legions landed, people had already been living on these islands for thousands of years. They had hunted, farmed, mined flint, dragged stones across the country, raised a hill by hand, and buried their dead in great tombs. They left no written words. What they left was the ground itself. Every place in this book can be visited, or has been dug up, or is in a museum.
Nearby mysteries
- The Lady of Llyn y Fan FachDragon or monster · Black Mountain, Carmarthenshire · 7 miles away
- Twm Siôn Cati's CaveLegend · Rhandirmwyn, Carmarthenshire · 9 miles away
- John Harries, the Cunning ManWitches · Cwrt-y-Cadno, Carmarthenshire · 10 miles away
- Dan yr OgofCave or grotto · Brecon Beacons, Powys · 10 miles away
- Dolaucothi Gold MinesRoman Britain · Pumsaint, Carmarthenshire · 11 miles away
- Brecon GaerRoman Britain · Near Brecon, Powys · 12 miles away