The Rarámuri or Tarahumara are a group of indigenous people of the Americas living in the state of Chihuahua in Mexico. They are renowned for their long-distance running ability. Originally inhabitants of much of Chihuahua, the Rarámuri retreated to the high sierras and canyons such as the Copper Canyon in the Sierra Madre Occidental on the arrival of Spanish colonizers in the 16th century. The area of the Sierra Madre Occidental which they now inhabit is often called the Sierra Tarahumara because of their presence.