Moenkopi Formation
The Moenkopi 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.
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.
Read more about Moenkopi Formation: History of Investigation, Members, Places Found, Fauna
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