Tragic season in Aconcagua: an American mountain climber died and is the fourth victim in a month. The 49-year-old woman suffered a heart attack while descending from the 6,962-meter-high summit.

She did not respond to the resuscitation maneuvers of her guide. Reaching the top this week represents a real challenge, greater than in previous years. The extended forecast shows very low temperatures, cloudy days and strong winds. In January alone, there were 10 days of storms.