The Rio Grande rises in the western part of the Rio Grande National Forest, in the U.S. state of Colorado, and is formed by the joining of several streams at the base of Canby Mountain, in the San Juan Mountains, due east of the Continental Divide of the Americas.

Rio Grande, fifth longest river of North America, and the 20th longest in the world, forming the border between the U.S. state of Texas and Mexico.

Rio Grande: Directed by John Ford. With John Wayne, Maureen O'Hara, Ben Johnson, Claude Jarman Jr.. A cavalry officer posted on the Rio Grande is confronted with murderous raiding Apaches, a son who's a risk-taking recruit and his wife from whom he has been separated for many years.

Whatever you call it, however you know it, the Rio Grande, at nearly 2,000 miles long, is the 3rd longest river in the continental US, and a source of life for the more than 6 million people and countless wildlife species and ecosystems that rely on it.

Learn about the Rio Grande River, a principal river in North America that forms part of the US-Mexico border and serves as the border between Texas and four Mexican states. Discover its course, tributaries, history, and economic significance.

Learn about the Rio Grande, the lifeblood of the desert and the international boundary of Big Bend National Park. Discover its history, ecology, and recreation along the Wild and Scenic River section.

Known as the Rio Grande in the United States and as the Río Bravo (and more formally as Río Bravo del Norte) in Mexico. The river flows generally southward for 1,885 miles (3,034 km). It is the fourth longest river system in the United States and the fifth longest in North America.