Alma Negra, 6290 meters Frédéric Hartemann, Robert Hauptman, The mountain encyclopedia: an A-Z compendium of more than 2,300 terms, concepts, ideas, and people (Scarecrow Press, 2005), p. 18: "Alma Negra 6290 m, 20636 ft... Pico Polaco 6001 m, 19688 ft"