Six Bells Colliery was a coal mine located in Six Bells, Abertillery, Gwent, Wales. On 28 June 1960 it was the site of an underground explosion which killed 45 local miners. It is now the site of an artistically acclaimed memorial to those events, designed by Sebastian Boyesen, and although the memorial is primarily to those who died in Six Bells, it also commemorates human losses and the hope of the entire South Wales coalfield.