Incahuasi Central Volcanic Zone of the Andes together with about 110 other Quaternary volcanoes, and lies in the southern sector of the volcanic zone; other volcanic zones in the Andes are the Northern Volcanic Zone, the Southern Volcanic Zone and the Austral Volcanic Zone. The history of volcanic activity is poorly known for most of these volcanoes owing to the lack of dating; only a few historical eruptions have been recorded, such as an eruption at Ojos del Salado in 1993. Incahuasi is located northeast of Ojos del Salado, the highest volcano in the world. Both volcanoes are found at the
Ore Mountains Valley zone. The western part of the Ore Mountains is home to the two highest peaks of the range: Klínovec, located in the Czech part, with an altitude of and Fichtelberg, the highest mountain of Saxony, Germany, at . The Ore Mountains are part of a larger mountain system and adjoin the Fichtel Mountains to the west and the Elbe Sandstone Mountains to the east. Past the River Elbe, the mountain chain continues as the Lusatian Mountains. While the mountains slope gently away in the northern (German) part, the southern (Czech) slopes are rather steep. The Ore Mountains are oriented