The system is traversed by the Chihuahua al Pacifico Railroad, known by the nickname "Chepe." It is both an important transportation system for locals and a draw for tourists.
There are actually six separate canyons in the Copper Canyon system, each of which is spectacular in its own right. Mexico established the Parque Nacional Barranca del Cobre (Copper Canyon National Park) to showcase this remote but beautiful area.
Also see: http://www.coppercanyon-mexico.com/