a river in southwestern United States; rises in the Rocky Mountains of northern Colorado and flows southwest through Utah into Arizona (where it flows through the Grand Canyon) and then southward forming the border between California and Arizona and finally into Mexico where it empties into the Gulf of California; an important source of water in the southwestern United States
the river that runs along California's southeastern border, separating California from Arizona.
(col-o-RA'D-o RI'-ve'r) - The river, which over millions of years of erosion, formed the Grand Canyon.
The Colorado River (Spanish: RÃo Colorado) is a river in the south of Argentina. It has its sources on the eastern slopes of the Andes in the latitude of the Chilean volcano Tinguiririca (about 34° 48' S.), and pursues a general east-southeast course to the Atlantic Ocean, where it discharges through several channels of a delta of the Unión Bay extending from latitude 39° 30' to 39° 50' S. Its total length is about 1000 kilometres (620 miles), of which about 300 kilometres (200 miles), from the coast up to Pichi Mahuida, are navigable for vessels of up to 2 metres (7 ft.) draft.
The Colorado River is the 18th longest river in the United States. and the longest river with both its source and mouth within Texas; however its drainage basin and some of its usually dry tributaries do extend into New Mexico. The 862 mile long river flows generally southeast from Dawson County through Marble Falls, Austin, Bastrop, Smithville, La Grange, Columbus, and Bay City before emptying into the Gulf of Mexico at Matagorda Bay.
The Colorado River, or the Rio Colorado, in Costa Rica is a tributary of the San Juan River which flows 96 km towards the Caribbean in the northern parts of Heredia and Limon Provinces. The surrounding habitats are protected as part of the second largest rain forest preserve in the country, the Barra del Colorado Wildlife Refuge.