One of the goals of my trip to Cornwall was to learn about tin mining. Both of my great-grandfathers were tin miners. The Wheal Coates Mine is owned by the National Trust and is one of the best known industrial buildings in Cornwall. The mine is perched on a cliff top. It was worked from 1815-1914 and produced Tin and Copper. The cold, windy and foggy day accentuated the loneliness of the abandoned site.