Houseman's Shaft Engine House, South Phoenix Mine, Linkinhorne, Cornwall, 1967-1974. View of the roofless shell of the engine house. The mine was originally opened as Wheal Prosper in the 1830s. In 1836 it was amalgamated with other small mines to form the Cornwall Great United Mines and was later renamed Wheal Phoenix and then South Phoenix. Copper was originally mined at the site, although, as reserves of this dimished, the mine changed to extracting tin. The Houseman's Shaft Engine House was added to the site in the mid-19th century. The mine closed in the early 20th century and the engine house in now the Minions Heritage Centre.