. A--E. . 57.More than three hundred fifty national parks can be found in the United States.These parks include huge color1ed rock formations,rivers,waterfalls,beautiful trees,other plants and many different kinds of wild animals. The rocks in Arches National Park are mostly a deep red color1.Rocks get their color1 from minerals.The red color1 is the result of iron oxide or rust.Scientists say the presence of iron in the rock shows that the weather was hot and dry when the rock was first formed.
The forming of arches Arches National Park Color of the rock Famous places               E.Natural parks in the prefix = st1 /USA