Arizona

Canyon de Chelly is unique among National Park Service units, as it is comprised entirely of Navajo Tribal Trust Land that remains home to the canyon community.

Coronado National Memorial commemorates Francisco Vasquez de Coronado's Spanish expedition to the Americas to find gold.

Twenty-seven million years ago a volcanic eruption of immense proportions shook the land around Chiricahua National Monument, a mecca for hikers and birders.

Casa Grande Ruins, the nation's first archeological preserve, protects the Casa Grande and other archeological sites within its boundaries.