This is the site of an old tin mine known as th

This is the site of an old tin mine known as the Cornwall Pit. At roughly 265m (870ft) deep, the terraced wall of the pit represents a century's worth of work that began in 1888 when a pound of tin was lifted out of a nearby creek. When the surface-metal was scoured from the landscape, methods changed eventually giving way to open-cut mining in the host pegmatite vein – an igneous rock with a coarse texture similar to granite.