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Y Garn Goch

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Coordinates: 51°54′07″N 3°54′18″W / 51.902°N 3.905°W / 51.902; -3.905
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The remains of the larger Iron Age fort

Y Garn Goch is a hill in the Brecon Beacons National Park (Parc Cenedlaethol Bannau Brycheiniog) in the east of Carmarthenshire, Wales. The name means the 'red cairn'. It lies near the village of Bethlehem, three miles southwest of Llangadog and four miles east of Llandeilo on the southern side of the broad Towy Valley. It is also commonly known as either Garn Goch or Carn Goch. Current landowners are the Brecon Beacons National Park Authority.[1]

Geology

Y Garn Goch is formed from the coarse sandstones of the Ffairfach Grit Formation of the early Ordovician period. A northeast-southwest oriented anticline (the Garn Goch Anticline) which runs through Y Garn Goch can be seen to fold these rocks. The sandstones and mudstones of the Abergwili and Llandeilo Flags Formations form the lower slopes of the hill to north and south. A fault runs northeast-southwest through the col between the two tops and is considered a part of the Welsh Borderland Fault System. The lower ground is mantled by glacial till, a legacy of the last ice age when the valley was filled by the Towy Valley glacier. The hill lies within Fforest Fawr Geopark designated in respect of the outstanding geological heritage of the region.[2][3]

Archaeology

Y Garn Goch is notable for the two impressive Iron Age hillforts of Y Gaer Fawr, (Template:Lang-en) and Y Gaer Fach, (Template:Lang-en), together the largest in southern Wales. There is evidence on site of occupation possibly from Neolithic times through to the Mediaeval period though not necessarily of a continuous nature. Bronze Age burial mounds are a significant feature of the site.

Access

The entire hill is registered common land and hence freely available to walkers as access land. It is approached by minor cul-de-sac roads from east and west and a public footpath runs north-south across it. The Beacons Way which starts at the nearby village of Bethlehem runs west-east over the hill en route for the Black Mountain (Y Mynydd Du) and eventually Ysgyryd Fawr near Abergavenny.

See also

References

  1. ^ Ordnance Survey Explorer map OL12 'Brecon Beacons National Park: western area'
  2. ^ British Geological Survey 1:50,000 map sheet 212 'Llandovery' & accompanying sheet explanation
  3. ^ Gaer Fawr, Hillfort on Y Garn Goch

51°54′07″N 3°54′18″W / 51.902°N 3.905°W / 51.902; -3.905

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