Puna de Atacama. The Argentinian part is in green and the Chilean in orange.Salar de Atacamasalt flat in the Chilean punaCono de Arita, Salta (Argentina)Salar de Atacama with the volcanoes Pular (L), Cerro Pajonales (center left) and Socompa (R) in the distance. The 1899 border runs through Socompa.
^Simons, Martin (1962), "The morphological analysis of landforms: A new review of the work of Walther Penck (1888-1923)", Transactions and Papers (Institute of British Geographers), 31 (31): 1–14, doi:10.2307/621083, JSTOR621083