The Chihuahuan Desert is a desert and ecoregion designation covering parts of northern Mexico and the southwestern United States.

It is bordered on the west by the Sonoran Desert and the extensive Sierra Madre Occidental range, along with northwestern lowlands of the Sierra Madre Oriental range. In the north, it abuts up to the Colorado Plateau Desert

The Chihuahuan Desert is the largest desert in North America.

The Chihuahuan Desert may be the single most biologically diverse desert on earth when measured by species richness and also a high endemic species number. Endemic species or endemism is a specific species which only found in one geographic location.

The Mexican wolf, once abundant, was nearly extinct and remains on the endangered species list.

The Chihuahuan extends from southern New Mexico into a small portion of southeastern Arizona, remaining along the state border up to the Escarpment Ecoregion

The Chihuahuan the lower Pecos Valley in New Mexico to the western border with Arizona, north to the Escarpment and Mountains Ecoregion (2N) and east to the Tablelands (2T) and the Great Plains (4H)

The Chihuahuan occupies much of West Texas and the middle Rio Grande Valley

In Mexican, the Chihuahaun desert covers a large portion of the state of Chihuahua, some of Coahuila, north-eastern Durango, the extreme northern part of Zacatecas, and small western portions of Nuevo León. This area is in Mexico is the central and northern portions of the Mexican Plateau.

193,783 square miles

Rio Grande river

Rio Chochos river, Pecos river

Desert and xeric shublands