Cerrig Marchogion

This is one of the current candidates as a source area for the dolerites (spotted and unspotted) found at Stonehenge.  It's a very beautiful area of tors and craggy outcrops, stretching across several hundred metres, right on the crest of the Preseli upland ridge.

For all lovers of fantasy:  This part of Mynydd Preseli has strong associations with King Arthur.  For example, in the story of Culhwch and Olwen related in “The Mabinogion” King Arthur and his knights fought a pitched battle with the monstrous boar Twrch Trwyth and his cohorts of smaller and equally ferocious smaller boars, in the depression of Cwm Cerwyn.  According to tradition the corpses of those who were slain were petrified  in the rocks of Cerrig Marchogion.  They are a bit spooky too, if you are stuck up there when the cloud comes down............