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Elegant Trogon - Trogon elegans © Peter LaTourrette http://www.stanford.edu/~petelat1/

Chihuahua is a state in northern Mexico with a mainland area of 244,938 square kilometers (94,571.1 sq mi), slightly bigger than the United Kingdom. It is surrounded by the Mexican states of Sonora to the west, Sinaloa to the south-west, Durango to the south, and Coahuila to the east, and by the U.S. states of Texas to the north-east and New Mexico to the north. Chihuahua is the largest state in Mexico by area, and therefore has the nickname El Estado Grande ("The Big State").

Although Chihuahua is primarily identified with its namesake, the Chihuahuan Desert, it has more forests than any other state. On the slope of the Sierra Madre Occidental mountains (around the regions of Casas Grandes, Cuauhtémoc and Parral), there are vast prairies of short yellow grass, the source of the bulk of the state's agricultural production.

One of the most notable features of Chihuahua is the Barranca del Cobre, or Copper Canyon, a spectacular canyon system larger and deeper than the Grand Canyon.