RIO GRANDE

RIO GRANDE (known also as Rio Bravo del Norte), an important river of North America, rises in the San Juan Mountains in Colorado; flows SE., dividing Texas from Mexico, and enters the Gulf of Mexico after a course of 1800 m.; is navigable for steamboats some 500 m.; chief tributary, Rio Pecos; also the name given to the head-stream of the river Paraná in Brazil and Argentina.