Biographies Rock Climbers Alex Honnold Bio, Age, Spouse, Family, Climbing Career and Residence By mandi on Tuesday, August 13, 2019 Alex Honnold is an American rock climber best known for his free solo ascents of big walls. He is the only person to free solo El Capitan in Yosemite National Park and holds the fastest ascent of the Yosemite triple crown.