The Grand Canyon
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The Grand Canyon covers 1,218,375 square miles and is larger
than the state of Rhode Island.
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Colorado River flows through the canyon in NW Arizona, and
this river began to form the canyon 6 million years ago.
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Parts of the canyon are 1 mile deep and 18 miles wide.
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John Wesley Powell led the first river expedition in 1869
and named the Grand Canyon.
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This national park was established in 1919.
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In 1974, Congress passed legislature that nearly doubled
the size of the park.
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There are 38 hiking trails that cover 400 miles.
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There are 300 species of birds and 120 other kinds of animals
in the park.
Did you know...?
Temperatures at the bottom of the canyon may be 25°
F higher than at the top of the canyon.
Bibliography
Photo found: www.eas.asu.edu/~sadowsky/
Information found: World Book Encyclopedia. Chicago: 1992