The Gulf of Mexico got its name from the Spanish explorers in the 1540s, who referred to it as "Golfo de México," with "Mexico" originating from the ancient Mexica civilization, known today as the Aztecs. The name reflects the geopolitical significance of the region during the Spanish colonization of the Americas.
The Rio Grande in the United States or the Río Bravo in Mexico, also known as P'osoge in Tewa and Tó Ba'áadi in Navajo, is one of the principal rivers in the Southwestern United States and in northern Mexico. The length of the Rio Grande is 1,896 miles, making it the 4th longest river in the United States and in North America by main stem.