Ojos del Salado, El Solo and other peaks. A joint expedition by the Polish Academic Speleological Club and the Federatión de Andinismo de Chile chose the massif of Ojos del Salado to carry out a program of climbing and scientific research. The group—seven Poles and two Chileans, led by M. Kuczynski—placed a base camp at Laguna Verde and ascended several peaks over 16,000 feet. The more important of the peaks climbed were Mulas Muertas (19,292 feet), El Ermitaño (20,145 feet, second ascent) and Ojos del Salado (22,590 feet). Several climbers also ascended El Solo (“The solitary one”) (20,306 feet), which had been claimed as ascended by an Argentinian party in the 1950’s, although it was later proved that this party had climbed a buttress of Ojos del Salado. Claudio Lucero, a Chilean member of the 1972 expedition, made a careful search on the top and found no traces. The Poles located several glaciers covered with volcanic ash on the northern slopes of Ojos del Salado and El Solo. This expedition took place in March 1972.

Humberto Barrera, Club Andino de Chile