Southwell, Isle of Portland
Artist: Grimm, Samuel Hieronymus
Medium: Ink wash on paper
Measuring four miles in length and one-and-a-half miles in width, the island is most notable for the limestone which has been quarried here for centuries. Portland stone was the preferred building material when London was rebuilt after the Great Fire in 1666. St Paul's Cathedral, the Houses of Parliament and the National Gallery are all built from Portland stone. It is still quarried here and the Isle is considered to be an important site of geological, botanical and biological interest.