aconcagua mountain, andes

acclimatization aconcagua adventure aerial alpine altitude america american andes argentina argentine argentinean ascent base blue camp cerro challenge chile climbing cold crag elevation expedition extreme face fitzgerald glacier height high highest hiking horcones ice inca landscape mendoza mount mountain mountaineering mulas nature park peak penitentes photo plaza polish provincial puente pursuit ridge rock sentinel seven sickness sky snow south sport stone summit summits tourism vacas valley white winter