Yarnbury Lead Mine
Grassington is one of many charming villages in the Yorkshire Dales and is the focal point of Upper Wharfedale. It is home to Yarnbury Mine, a historic site which primarily mined for lead. In the 12th century, for some 200 years, mining intensified and Yorkshire lead was widely used in the great castle and cathedral building age. It is said that lead from Yorkshire mines was used in Windsor Castle, St Peter's in Rome and even on church roofs in Jerusalem.