9-year-old boy is youngest to reach Aconcagua summit
A 9-year-old boy from Southern California has become the youngest person in recorded history to reach the summit of Argentina's Aconcagua Mountain, which at 22,841 feet (6,962 meters) is the tallest peak in the Western and Southern hemispheres.
Tyler Armstrong of Yorba Linda reached the summit on Christmas day with his father Kevin and a Tibetan sherpa, Lhawang Dhondup. (AP)
