Located in the Atacama Region of Chile at 93.2 miles from Copiapó. Nevado Tres Cruces National Park includes Laguna Santa Rosa, Laguna del Negro Francisco, and a part of the Salar de Maricunga. The park is divided into two zones, the northern zone encompasing the southern portion of Salar de Maricunga and Laguna Santa Rosa, and the southern area the Laguna del Negro Francisco. The park is named after Nevado Tres Cruces, which dominates the landscape of the area. The Nevado Tres Cruces National Park is managed by CONAF, which offers two refuges in the area: one at the south of Negro Francisco Lagoon and other at the west of Santa Rosa Lagoon.
The park lies in the northern end of the Southern Andean steppe. This salt flat spans 8,300 hectacres at an altitude of 3,700 meters (12,139 ft). The World's highest volcano, and the highest peak in Chile, Ojos del Salado, (6,893meters/22,615 ft.) is located in its vicinity. The salar is 180 km northeast of the city of Copiapó in the Andes mountains.