VOA慢速英语 游历美国西部四大国家公园

　　The rock formations 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.

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　　VOICE TWO:

　　Arches National Park is not the only place in Utah where visitors can see arches and other beautiful rock formations. They are also found in the nearby national park named Canyonlands.

　　Canyonlands National Park is a wild, lonely area of rocks, rivers and desert plants. Only Native Americans, cowboys, and explorers entered this area before the park was established in nineteen sixty-four. Even today, it is difficult to walk or ride through the park. The roads are still made of dirt. Driving requires a special vehicle. The National Park Service says Canyonlands National Park is wild America.

　　VOICE ONE:

　　Rivers created the area as they cut rock into many different formations. At the center of the park are two deep canyons carved by the Green and Colorado Rivers. Three areas that surround these rivers are included in the park.