Pircas Mountains

The Pircas mountains belong to the dry ranges east of the high Andes in the San Juan country. The Sierra del Tontal runs through this pre-Andean landscape, with Cerro Pircas among its highest summits. Bare ridges rise above the valleys on either side, and the steep country separates the Calingasta valley from lands farther east. These mountains form part of a succession of ranges between the Andean crest and the plains of Cuyo.