 The park is divided into two zones, the northern zone encompassing 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 park is managed by the Corporación Nacional Forestal (National Forest Corporation; CONAF), which offers two refuges in the area