We descended to the first water station and decided to turn around. Yep, 3 miles (and about 1,000 feet in elevation change) was plenty for us at 7,000 feet. It’s that steep. About halfway back up, I heard Michelle gasp and point. I looked up the trail. A quarter mile away, rocks were tumbling down the canyon and people were screaming. A woman—Chinese, we later learned—had gone just a few feet off the trail, probably to get a better view or photograph. The ground gave way beneath her and down she went. Michelle said she fell head over heels two full revolutions, large rocks accompanying her as she went. By the time I dialed 911, the police already knew of the incident. The woman was incredibly lucky. She had somehow fallen into some vegetation that arrested her fall and appeared to be holding her in place. She had not been hit by the tumbling rocks.