Geology Fieldnotes: Canyon De Chelly National Monument, Arizona

This canyon cuts through the sandstones of the De Chelly formation, of Permian age (200 million years old). The river forming the canyon is the Rio De Chelly, which begins in the nearby Chuska Mountains. Details on this site include some geology, visitor information, photographs, and area maps. Also discussed are details on seeing the park, and Native American history of the area. Educational levels: General public, Undergraduate lower division, Undergraduate upper division