Canyon de Chelly National Monument lies within Navajo Nation lands in northeastern Arizona.
Glen Canyon National Recreation Area encompasses Lake Powell, the second largest man-made lake in North America.
Grand Canyon National Park is one of the most biologically diverse parks on the Colorado Plateau.
Hubbell Trading Post, in northeastern Arizona, is the oldest continuously operating trading post on the Navajo Nation.
The Navajo National Monument protects three exceptionally large and well preserved Ancestral Puebloan dwelling sites.
Petrified Forest National Park protects fossils and petrified wood from the Triassic Period, more than 200 million years ago.
Sunset Crater Volcano National Monument protects significant geological resources of a volcanic eruption that occurred about 900 years ago.
Walnut Canyon National Monument was established in 1915 to protect the ruins of Ancestral Puebloan cliff dwellings.
Wupatki NM is the only known area in the southwestern U.S. where evidence from at least three Ancestral Puebloan cultures can be found.
Last updated: April 25, 2018