Chysauster is an ancient settlement and scheduled monument on the upper slopes of the Carnaquidden Downs in the Penwith District of southwest Cornwall in England.
A fogou (or fougou) is an underground passage or tunnel constructed in the Iron Age by digging trenches and lining the sides with drystone walling.
The Great County Adit is a system of underground tunnels that drained tin and copper mines between Redruth and Bissoe in west Cornwall.
The Great Flat Lode is a large ore-bearing body of rock under the southern slopes of Carn Brea, south of Camborne in Cornwall, England.
A copper and tin mine to the south of Camborne in Cornwall named after the mineral lord, Lady Frances Basset
A mysterious cloud of mist that often hovered over the Cowloe Rock, near Sennen Cove in Cornwall, warning of approaching bad weather.