"Monument Valley is a scenic region encompassing approximately 5,180 sq km (2,000 sq mi) in northeastern Arizona and southeastern Utah. The landscape is characterized by tall, red sandstone buttes, mesas, and arches created by erosion, rising up to 300 m (1,000 ft) from a sandy plain. Monument Valley is part of the Navajo Indian Reservation; the Navajos have occupied the valley since the 1860s. Rainbow Bridge and Natural Bridges national monuments are nearby. Tall, red sandstone buttes and mesas rise up from the sandy plain of Monument Valley in northeastern Arizona and southeastern Utah. The scene of countless western movies, the valley has come to symbolize the open spaces and rugged landscape of the American West." quoting Shonie De La Rosa, Welcome to Monument Valley

Reflecting one of the longest continuously inhabited landscapes of North America, the cultural resources of Canyon de Chelly include distinctive architecture, artifacts, and rock imagery while exhibiting remarkable preservation integrity that provides outstanding opportunities for study and contemplation. Canyon de Chelly also sustains a living community of Navajo people, who are connected to a landscape of great historical and spiritual significance. 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. NPS works in partnership with the Navajo Nation to manage park resources and sustain the living Navajo community.