Colorado River

Proper noun

the Colorado River

1. A major river in Colorado, Utah, Arizona, Nevada and California, United States and Baja California and Sonora, Mexico.
   • Between us and the Colorado river we were aware that the country was extremely poor in grass, and scarce for water, there being many jornadas, (days’ journey,) or long stretches of 40 to 60 miles, without water, where the road was marked by bones of animals.1845, J[ohn] C[harles] Frémont, Report of the Exploring Expedition to the Rocky Mountains in the Year 1842, and to Oregon and North California in the Years 1843-’44, Washington: Gales and Seaton...
   • Where the Colorado River forms the boundary between California and Arizona it cuts through a number of volcanic rocks by black, yawning canyons.1895, J[ohn] W[esley] Powell, chapter 1, in Canyons of the Colorado, Meadville, PA: Flood & Vincent; republished as The Exploration of the Colorado River and Its Canyons, New York: Dover, 1961...
2. A river in Texas, United States.
3. A river in Argentina.
4. A river in Potosí, Bolivia.
5. A river in Costa Rica.