In 1884 it was noted as containing three farms and a mine.[4] Tregullon mine was worked for iron, copper and tin.[5] It operated first as "Tregullan Mine" to 1822, then from 1836 as "Tregollan Mine". In 1839 it merged with Tretoil Mine and was known as Consolidated Tretoil mine.[6] Tregullan Quarry contains greenstone, axinite and calcflinta.[7]