“They usually portend worse weather.” I glanced at Gaston. We parked at Practice Rock, which looked to me very much like the real thing, and met up with the park’s climbing ranger, Roberta Andruska.

with the fingers bent to bring the hand closer to the rock. Larger holds can be crimped by using the same hand shape. Imagine opening a pair of lift doors with your hands; this is the way to place ...