Ayres Natural Bridge was created over time as La Prele Creek eroded a solid rock wall. The result of this erosion is a unique arch formation with La Prele Creek flowing beneath the natural bridge. Ayres Natural Bridge is one of only a few in the world that still has water flowing beneath it.
Ayres Natural Bridge Park is a county park in Converse County, Wyoming. The park is located between Douglas and Glenrock, just about five miles from I-25. In addition to being home to this unique natural bridge, the park also offers day use areas with picnic pavilions and a small campground. Vehicle size is limited to 30 feet due to the winding road and small parking areas. Pets are not allowed.