PRESELI HILLS

The 'Preseli Hills' or 'Preseli Mountains' (Welsh: ''Mynyddoedd Y Preseli / Y Preselau'') are a range of hills in north Pembrokeshire, Wales. They form part of the Pembrokeshire Coast National Park.
The hills rise to 536 metres at Foel Cwmcerwyn and are dotted with prehistoric remains. Bluestone from the hills at Carn Menyn, sometimes called Carn Meini, was used to build part of Stonehenge. The hills are known as the Bluestone area of Pembrokeshire.