Morning Glory Natural Bridge is located at the end of a side canyon of Negro Bill Canyon. It spans the space between two portions of the sandstone walls and is the "sixth longest natural bridge span in the United States." The underside of the bridge is about 60 feet (18m) above the ground.A trail runs from Highway 128 right to the bridge.

The area under the bridge is an amphitheater that provides a cozy feeling and is in shade most of the day because the canyon's walls are so close together. A small perennial stream gurgles from a crack in the rock, filling a small, shallow pool under the arch. From there the water flows down to the main canyon, where it joins the main stream. Some poison ivy grows here and in places along the trail and under the bridge.