In this Overview, large rock formations are shown rising above the desert landscape in Northeastern Arizona, USA. This region is arid, largely void of greenery, and characterized by hills, mesas, buttes, cliffs and canyons. This particular outcrop is about 12.5 miles (20 km) due east of the Navajo National Monument, which contains the well-preserved cliff dwellings of the Ancestral Puebloan People.