By Mail
Canyon de Chelly National Monument
PO Box 588
Chinle, AZ 86503
By Phone
Headquarters
928-674-5500
By Fax
928-674-5507
Did You Know?
Chaco Canyon National Monument was established on March 11, 1907. On December
19, 1980, Chaco Canyon National Monument was re-designated Chaco Culture
National Historical Park. An additional 13,000 acres were added to the park.