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Rare first state of Giovan Battista Nicolosi's four sheet map of North America, the first printed map to accurately depict the course of the Rio Grande (named Rio Escondido) flowing into the Gulf of Mexico. In 1519, a Spanish naval expedition along the northeastern coast of Mexico charted the mouths of several rivers including the Rio Grande.
The Rio Grande water resource region is one of 21 major geographic areas, or regions, in the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units. These geographic areas contain either the drainage area of a major river, or the combined ...
The Rio Grande follows this rift for much of its course. The Rio Grande rift is a north-trending continental rift zone. It separates the Colorado Plateau in the west from the interior of the North American craton on the east. [1] The rift extends from central Colorado in the north to the state of Chihuahua, Mexico, in the south. [2]
The Continental Divide in North America in red and other drainage divides in North America The Continental Divide in Central America and South America. The Continental Divide of the Americas (also known as the Great Divide, the Western Divide or simply the Continental Divide; Spanish: Divisoria continental de las Américas, Gran Divisoria) is the principal, and largely mountainous ...
Rio Grande Gorge Bridge. Geologically, the Rio Grande Gorge is a canyon, [1] carved out by erosion over the last several million years. [2] The Rio Grande Gorge and its river follow a topographical low within the larger Rio Grande Rift; a mixture of volcanic activity, shifting tectonic plates, and erosion of layers of gravels and lava yielded the recognizable narrow, deep gorge visible today.
North of this system is the Conchos River which drains into the Rio Grande. [19] Along many rivers the arid conditions have caused courses to be dammed to provide water for irrigation. These dams have caused concerns along with those caused by other activities. The Yaqui has been dammed with three large reservoirs along its course. [19]
An auxilio sign with a number to indicate its precise location is written in Spanish near a water gate on the main canal just north of the border wall in the lower valley in June 2023.
The Rio Grande, which flows from southwestern Colorado for 2,000 kilometres (1,200 mi) before entering the Gulf of Mexico, was classified in 1993 as one of North America's most endangered or imperiled rivers. The Rio Grande flows south into the Albuquerque Basin between the Sandia and Jemez mountains.