El Capitan is one of the world's largest granite monoliths towering 4,000 feet (1,219 meters) above Yosemite Valley. Several people made emergency calls, reporting the rock fall from the Waterfall route on the east buttress of El Capitan. Zabrok said he has climbed El Capitan dozens of times and has "never seen anything like this." In 2013, a rock dislodged and severed the rope of a Montana climber who was scaling El Capitan. Yosemite remained open after Wednesday's rock fall, and other activities throughout the park weren't affected, rangers said.

Source: Fox News September 28, 2017 00:43 UTC