Natural Bridges National Monument
there are a number of natural bridges in the park. in fact, there are three natural bridges in each park. Each of the bridge was named after a Native American group that lived nearby. These bridges were formed over thousands of years, when rivers eroded the soft sandstone in the park. Eventually, a deep canyon or valley was formed. The top part of the rock over the canyon was not washed away by the water, so it formed a natural bridge.
in 2006, the international Dark Sky Association measured the light in the park and found it to be almost completely dark, a 2 on a 10-point scale. This dark sky park attracts many visitors who enjoy watching the night sky. The natural darkness also provides a good habitat for animals that are active during the night.