About the quarry
Coldstones Quarry, situated on Greenhow Hill at 1400 feet above sea level, is one of the highest quarries in Britain. Several small limestone quarries operated around Greenhow over the last two centuries and in the early 1900s the surrounding hills were dominated by stone quarries. Gradually these closed until Coldstones became the last working quarry in the area.Operated by Hanson, a member of the Heidelberg Cement Group, it provides aggregates and asphalt for major construction projects across the U.K.
The quarry currently covers an area of about 30 hectares. It is worked on 6 benches, 15-18m high, to a depth of 300m O.D (ordnance datum) at the base of the quarry.
Coldstones provides an average of 600,000 tons of aggregate each year, and supplies building materials into West and North Yorkshire.