There are numerous mines in the Oruro area, most of which are abandoned or operated by cooperativos (small groups of miners who purchase temporary rights). One of the most important is Mina San José, which has been in operation for over 450 years. Now run by six cooperatives, they have opened a part of the mine to tourists. The tour lasts about three hours and costs B$50. It’s available in Spanish only; English tours are available through Charlie Tours for B$250, with transport and guide. To get there take a yellow micro (marked ‘D’ or ‘San José’) or the light-blue mini (B$5) from the northwest corner of Plaza 10 de Febrero.