The man, in his 30s, "fell off the north side" of the trail around 4 p.m, says Phoenix Fire Capt. Scott Douglas. Family members called 911 when they noticed he was experiencing a possible seizure and then fell.
When rescue crews made their way over to the man, he was stable, but wasn't able to move much, Douglas said. He was taken down the mountain by first responders.
He was taken to the hospital for treatment.