WHAT'S INSIDE: WEST
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California, a state in the western United States. It is bordered by Oregon, Nevada, Arizona, and Mexico and stretches along the Pacific Ocean for roughly 800 miles (1,300 km).
Colorado, one of the states in the west-central United States. It is crossed by the snowcapped Rocky Mountains and is sometimes called the “Top of the Nation,” because its mean (average) elevation—6,800 feet (2,073 m)—is the highest of any state.