Big Pit National Coal Museum

Big Pit National Coal Museum is an industrial heritage museum in Blaenavon, Torfaen, Wales. A working coal mine from 1880 to 1980, it was opened to the public in 1983 as a charitable trust called the Big Pit (Blaenavon) Trust. By 1 February 2001 Big Pit Coal Museum was incorporated into the National Museums and Galleries of Wales as the National Mining Museum of Wales. The site is dedicated to operational preservation of the Welsh heritage of coal mining, which took place during the Industrial Revolution.