Boulby Mine is a 200-hectare (490-acre) site run by Cleveland Potash, located just southeast of the village of Boulby, on the northeast coast of the North Yorkshire Moors in Redcar and Cleveland, England. It is Europe's second deepest mine at 1,400 metres (4,600 ft).
Scientific - Astronomy, Resources - Minerals/Metals
Because of its depth, Boulby Mine is used to house the ZEPLIN-III dark matter detector 1,100 meters below the surface in the Boulby Underground Laboratory. It also housed the UK Dark Matter Collaboration.