Big Pit: National Coal MuseumArtsBlaenavon, NP4 9XPOpening hoursMo-Su 09:30-17:00Phone+44 1495 790311Websitehttps://museum.wales/bigpit/Nearby placesBig Pit the National Mining Museum of WalesBlaenavon's Heritage RailwayBlaenavon IronworksBlaenafon Community MuseumBlaenavon Workmen's HallGarn Lakes