The Sol de Mañana, located at 4850 masl (15900 ft) in Southern Bolivia, is characterized by intense volcanic activity and the sulphur springs field is full of mud lakes and steam pools with boiling mud. There are still several holes, the best known emits pressurized steam, visible in the morning up to 50 meters high. This is not a geyser, but a well in the artificial geothermal field. Sol de Mañana together with El Tatio is among the geothermal fields located at high altitude and is associated with the volcanic system of the Altiplano-Puna volcanic complex, as well as with a fault system that connects the two.

https://en.wikipedia.org/wiki/Sol_de_Manana