[kol-uh-rad-oh, -rah-doh; for 4 also Sp. kaw-law-rah-th
aw] 
| 1. | a state in the W United States. 2,888,834; 104,247 sq. mi. (270,000 sq. km). Capital: Denver. Abbreviation: CO (for use with zip code), Col., Colo. |
| 2. | a river flowing SW from N Colorado through Utah and Arizona into the Gulf of California: Grand Canyon; Boulder Dam. 1450 mi. (2335 km) long. |
| 3. | a river flowing SE from W Texas to the Gulf of Mexico. 840 mi. (1350 km) long. |
| 4. | Rí⋅o [ree-oh; Sp. ree-aw] , a river in central Argentina, flowing SE from the Andes to the Atlantic Ocean. 530 mi. (853 km) long. |
Colorado River
|
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.