 In order to establish this, quantities of peppermint were put in the mine and sure enough, eventually the spring water tasted of peppermint.The Village Field, adjacent to the village centre, and now legally protected from development by Fields in Trust, was a gift to Gwernymynydd residents from the Waln family.The original village school, also adjacent to the field, was replaced by a new modern building in the 1950s (now the Village Centre).