Moenkopi Formation
（重定向自Moenkopi）
![](/Images/godic/202501/27/Moenkopi_Formation1529.jpeg")
![Moenkopi Wash in Coconino County, Arizona (1914).](/Images/godic/202501/27/Moenkopi_Wash_AZ_19141529.jpg")
![The Jurassic through Permian stratigraphy of the Colorado Plateau area of southeastern Utah that makes up much of the famous prominent rock formations in protected areas such as Capitol Reef National Park and Canyonlands National Park. From top to bottom, (Jurassic to Permian): (6)-Rounded tan domes of the Navajo Sandstone, (5)-(dark)-layered red Kayenta Formation, (4)-cliff-forming, vertically-jointed, red Wingate Sandstone, (3)-slope-forming, purplish Chinle Formation, (2)-layered, lighter-red Moenkopi Formation, and (1)-white, layered Cutler Formation sandstone. Picture from Glen Canyon National Recreation Area, Utah.](/Images/godic/202501/27/SEUtahStrat1530.JPG")
![Eocyclotosaurus .](/Images/godic/202501/27/Eocyclotosaurus_wellesi1DB1530.jpg")
The Moenkopi Formation is a geological formation that is spread across the U.S. states of New Mexico, northern Arizona, Nevada, southeastern California, eastern Utah and western Colorado. This unit is considered to be a group in Arizona. Part of the Colorado Plateau and Basin and Range, this red sandstone was laid down in the Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago.