Wheal Grenville
During the mid-19th century, Wheal Grenville was sold several times after failing to make profit initially from copper and later from deeper tin reserves. In response to falling tin prices in the 1870s, exploration was carried out for any richer reserves and with some good fortune an area of the Great Flat Lode was discovered. By 1881 the mine was profitable and highly so by the 1890s, leading to investment in new engine houses, the remains of which can be seen today. The mine closed in 1914. The shortened chimney on the pumping engine house is due to a lightning strike in 1897.
On walks
- Carn Brea and the Great Flat Lode (5.9 mile walk)