One of these areas is called the Maze District.This area includes rock art made by people who lived there more than 2,000 years ago.Yet many people today cannot see the Maze District because it is so difficult to reach.The area is one of the loneliest and wildest areas in the United States.

　　Another area of the park is called the Needles.It includes long，thin，red and white rocks that reach high into the air like fingers on a hand.

　　A good way to see all the areas of Canyonlands National Park is to fly over it.A one－hour trip in a small airplane makes it possible to see the park’s red rocks，arches and flat areas where ancient Indian people once lived.

　　From high in the air，visitors can clearly see the third area of the park—a high broad flat rock known as the Island in the Sky.The island was formed between the two rivers.

　　Another interesting formation is called the Upheaval Dome.This is a huge hole about four hundred and fifty meters deep and one point five kilometers wide.It is considered to be the most unusual geological (地质的) structure in the area.

　　41．Why is Canyonlands National Park referred to as wild America?

　　A．No vehicle is available to go through the park.

　　B．The park today still remains as it was in the past.

　　C．There is no access for people to get close to it.

　　D．A variety of wild animals and plants grow in it.

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