Also referred to as Twyn Swnd, Garreg Las is a 2,083-foot (635 m) hill to the west of Fan Brycheiniog in the Black Mountain region of the Brecon Beacons National Park. The summit is notable for its two huge rocky cairns, once thought to be Bronze Age stone barrows. It is usually ascended from Llanddeusant to the north and the path across the summit forms part of the Beacons Way long-distance footpath.

David Howells

February 4, 2024

Garreg Las (Twyn-Swnd) is on the west side of the Black Mountain range, and it is visited far less often than many peaks in the Brecon Beacons. Its remoteness is its draw for me; rarely will you be unindated with a host of other walkers here. It is also hansomely topped by a pair of substansive, rocky ancient cairns. You can come across from the car park on the A4069 Brynaman Road or come up from Llanddeusant; both are equally as appealing, but the Llanddeusant route takes the top slot if you go back via Llyn y Fan Fach; this route has the best views. The views from the summit itself are like the location: raw and remote, but I love the place. It is a good area for a bit of navigation practice. At 635 metres high, it is a UK-listed Nuttall and Hewitt.

Tip: Any Welsh place name with Llan in it means it has a church. In this case, Llanddeusant means the church with two saints.

dipperdolphin

July 29, 2022

Easy summit to get too, not as challenging as the big peaks to the East - only a short walk from them too. Interesting terrain at the top - very rocky.

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Elevation 630 m

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Thursday 11 December

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Location: Llanddeusant, Carmarthenshire, South Wales, Wales, United Kingdom

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Garreg Las Summit Cairns

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