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
Entiat Mountains the Entiat Range. The highest peaks of the southern portion are under . Significant peaks of the southern Entiat Range include Cougar Mountain, Tyee Mountain, Sugarloaf Peak, Chumstick Mountain, and Burch Mountain. The name comes from the Entiat tribe. A large number of place names, including many of the mountains, were given by Albert H. Sylvester. In July 2014, several wildfires, including the Mills Canyon Fire and the Kelly Mountain Fire, burned in the Entiat Mountains. Entiat Mountains The Entiat Mountains, or Entiat Range is a mountain range in the U.S. state of Washington. Located west of the Columbia River,