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The Tepees of Petrified Forest National Park, which contain the remnants of a Triassic floodplain

Rock formations known as the Tepees in Petrified Forest National Park Arizona, USA. The exposed rock layers belong to the Blue Mesa Member of the Chinle Formation and are about 220 to 225 million years old. The colorful bands of mudstone and sandstone were laid down during the Triassic, when the area was part of a huge tropical floodplain.
Photo credit: User:Finetooth

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