Echo Cliffs
The Echo Cliffs is a prominent monocline in northern Arizona that runs for dozens of miles in a north-south direction, within the Navajo Nation and Coconino County, in northern Arizona. It is to the east of Grand Canyon National Park.
U.S. Highway 89 runs parallel to it in the valley on its western side.
Prominently exposed in the cliffs are the Chinle Formation of the Colorado Plateau. Its rocks are of the Glen Canyon Group above and the Moenkopi Formation below.
Coordinates: 36°36′25″N 111°38′38″W / 36.607°N 111.644°W
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