Most of this 3,141 Kilometers (1,952 miles) border is defined by the course of the Rio Grande River (Rio Bravo del Norte, as it is known in Mexico) which runs from Ciudad Juarez-El Paso into the Gulf of Mexico, close to the cities of Matamoros-Brownsville.
The border between Mexico and the United States is the Rio Grande River.
when did the US close the border beween Mexico and the US
US-Mexico border. If you mean the body of water that defines a large stretch of such border, it is the Rio Grande River.
The Rio Grande
The Rio Grande
US-Mexico border ("Frontera Mexico-Estados Unidos").
US-Mexico border
Mexico-US Border
The Rio Grande
The Rio Grande river is a part of the border between the US and Mexico.
The Rio Grande, also known as the Rio Bravo, forms the border between Mexico and the USA.
Rio Grande (name in the U.S.) - Río Bravo del Norte (name in Mexico)