SAN FRANCISCO (AP) — A 10-year-old Colorado girl scaled Yosemite National Park's El Capitan and may have become the youngest person to climb one of the most celebrated and challenging peaks in the world.

Selah Schneiter of Glenwood Springs, Colorado, completed the 3,000-foot (910 meters) climb of the vertical rock formation with the help of her father, Mike Schneiter, and family friend, Mark Regier.

The trio took five days to climb the Nose — the best known route — and reached the summit on June 12, Mike Schneiter said. It typically takes accomplished climbers four or five days to complete.

Re...