 The first ascents of several peaks in the range were achieved by a Polish expedition of 1934 organized by the Tatra Society and led by Konstanty Jodko-Narkiewicz, whose party consisted of S. W. Daszynski, J. K. Dorawski, A. Karpinski, S. Osiecki, and W. Ostrowski.They climbed Mercedario, Alma Negra, Pico Polaco, La Mesa, and Cerro Ramada.The range is clearly visible from the better-known Aconcagua, the highest mountain in the Americas at , which is 100 km south of Mercedario, with the result that some of the many climbers who frequent Aconcagua move on to this range, although the area is less easy to access.