Y Garn Goch

Y Garn Goch is a hill in the Brecon Beacons National Park in the east of Carmarthenshire, Wales.

[1] Y Garn Goch is formed from the coarse sandstones of the Ffairfach Grit Formation of the early Ordovician period.

The sandstones and mudstones of the Abergwilli (sic)[2] and Llandeilo Flags formations form the lower slopes of the hill to north and south.

The hill lies within Fforest Fawr Geopark designated in respect of the outstanding geological heritage of the region.

The Beacons Way which starts at Llangadog passes through the nearby village of Bethlehem before running west-east over the hill en route for the Black Mountain (Welsh: Y Mynydd Du) and eventually Abergavenny.

The remains of the larger Iron Age fort from within the remains of the smaller one.