Weeping Rock: Zion National Park, September 2001 After we finished our hike on the Middle and Lower Emerald Pool Trails, we continued up the canyon and stopped at Weeping Rock. At Weeping Rock there is a short hike to a shallow cave. A cascade of water falls along the edge of the cave. This water is trapped between two layers of rock in the canyon walls. Gravity pulls the upper layer of rock down against the lower layer, squeezing the water out of cracks and fissures in the canyon wall. (via Robby Edwards’ Photos)