阅读下面的短文。从所给的A―E五个选项中为标有小题号的段落找出适当的小标题。选项中有一个是多余的选项。
58．Millions of people from all over the world visit the state of Utah every year．One reason is the many national parks．These are areas of great natural beauty that are protected by the United States government．One of the parks is Arches National Park，near the town of Moab in eastern Utah．Experts say this park has the greatest number of arches(拱门)of any similar geographic area in the world．The National Park Service has counted more than two thousand arches in Arches National Park．The smallest of these is an opening of less than one meter；the longest measures more than ninety-three meters．
59．Arches look like half a circle above an opening or hole in a rock．Arches can also appear as curved bridges between two large rocks．Scientists say they began forming almost two thousand million years ago．Most arches seen today developed within the past million years．As time passed，the area was filled with material left by rivers．Other rocks buried the area．Then great pressure deep in the Earth created huge mountains．
60．The rocks in Arches National Park are mostly a deep red color．Rocks get their color from minerals．The red color 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．
A．The forming of arches B．Arches National Park C．Color of the rock
D．Famous places E．Natural parks in the