Incahuasi or Nevado de Incahuasi is a volcanic mountain in the Andes of South America. It lies on the border of the Argentine province of Catamarca, and the Atacama Region of Chile. Incahuasi has a summit elevation of 6,621 metres (21,722 ft) above sea level.
The volcano consists of a 3.5-kilometre-wide (2.2 mi) caldera and two stratovolcanoes. Four pyroclastic cones are located 7 kilometres (4.3 mi) to the north-east and produced basalt-andesite lava flows that cover an area of 10 square kilometres (4 sq mi).
Catamarca (Spanish pronunciation: [kataˈmarka]) is a province of Argentina, located in the northwest of the country. The province has a population of 334,568 as per the 2001 census [INDEC], and covers an area of 102,602 km². Its literacy rate is 95.5%. Neighbouring provinces are (clockwise, from the north): Salta, Tucumán, Santiago del Estero, Córdoba, and La Rioja. To the west it borders Chile.
The capital is San Fernando del Valle de Catamarca, usually shortened to Catamarca. Other important cities include Andalgalá, Tinogasta, and Belén.