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U.S. state (organized as a territory 1861, admitted as a state 1876), named for the river, Spanish Rio Colorado, from colorado "ruddy, reddish," literally "colored," past participle of colorar "to color, dye, paint," from Latin colorare (see coloration).
State in the west-central United States in the Rocky Mountains, bordered by Wyoming and Nebraska to the north, Nebraska and Kansas to the east, Oklahoma and New Mexico to the south, and Utah to the west. Its capital and largest city is Denver.
River in the southwestern United States, with its headwaters in the Rocky Mountains of northern Colorado, that flows generally southwest through Colorado, Utah, and Arizona; forms the border between Nevada and Arizona and Arizona and California; and then flows through Mexico, emptying into the Gulf of California.
Note: Over millions of years, the force of the river has carved the Grand Canyon in northwestern Arizona.
Note: Source of fresh water for communities in Nevada, Arizona, and California.
Note: The site of the Hoover Dam.