Cwm Pwcca is an enchanted valley in Gwynedd flanked by a crystal clear lake at one end and the Y Wyddfa massif at the other. It is inhabited by witchcraft-practicing dwarf race Y Dynan Bach Têg.
Fragment of the description of the valley from Fairy Legends and Traditions of the South of Ireland by Thomas Crofton Croker:
Cwm Pwcca, or the Pwcca's Valley, forms part of the deep and romantic glen of the Clydach, which, before the establishment of the iron-works of Messrs. Frere and Powell, was one of the most secluded spots in Wales, and therefore well calculated for the haunt of goblins and fairies. But the bustle of a manufactory has now in a great measure scared these beings away; and of late it is very rarely that any of its former inhabitants, the Pwccas, are seen.
Thomas Crofton Croker, Fairy Legends and Traditions of the South of Ireland
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