The TauTona Mine, formerly Western Deep Levels No.3 Shaft, is a gold mine located in the West Wits gold field west of Johannesburg. The mine is near the town of Carletonville in South Africa. At approximately 3.9 kilometers (2.4 mi) deep, it is home to the world's second deepest mining operation, rivalled only by the Mponeng Gold Mine, formerly Western Deep Levels No.1 Shaft. TauTona was temporarily closed in 2018.