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
Clearwater Mountains and the McConnell Mountain. The South Clearwater Mountains is the southernmost and tallest subrange, with 6 peaks above . The South Clearwaters encompass and its two highest peaks are the Stripe Mountain and the Salmon Mountain. Clearwater Mountains The Clearwater Mountains are part of the Rocky Mountains, located in the panhandle of Idaho in the Western United States. The mountains lie between the Salmon River and the Bitterroot Range and encompass an area of . The North Clearwater Mountains is the northernmost and shortest subrange. The subrange is in area. Only two of its peaks — the Pot Mountain and