§ Mr. Fox
Information about total reserves of particular grades of limestone is not available. However, chemically-78W pure limestone deposits occur principally in the carboniferous limestone series, which outcrops in England and Wales mainly within national parks or areas of outstanding natural beauty. The Institute of Geological Sciences has been undertaking an evaluation of deposits in parts of the Peak District and Yorkshire Dales national parks.
§ Mr. Fox
There is no information available about total discoveries of ferrous and non-ferrous metals. Discoveries within national parks and areas of outstanding natural beauty include lead (Peak District), wolfram (Lake District and Cornwall), tin (Dartmoor and Cornwall), copper (Snowdonia, Anglesey and Cornwall), and iron (Cotswolds), but none of these metals is found exclusively in such areas. I am not aware of any discoveries of rare earths within national parks or areas of outstanding natural beauty.