It is situated in the departments of Arequipa and Moquegua, in the provinces of Arequipa, Caylloma, and General Sánchez Cerro over an area of 366 936 hectares. In this Reserve, we can find important snow-capped mountains, volcanoes, and lagoons of great beauty and recreational value. It stands out principally because of its beautiful inactive volcanoes Misti. The hydrographic basin, regulated by the El Fraile and Aguada Blanca dams, guarantees drinking water for the city of Arequipa and supplies irrigation water for the agricultural campaign in the department.