Geology Gallery

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NPS

 
There are two main geological layers in Petrified Forest National Park, the Mio/Pliocene Bidahochi Formation and the Late Triassic Chinle Formation. These formations are further separated into members,

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Mailing Address:

1 Park Road, PO Box 2217
Petrified Forest, AZ 86028

Phone:

(928) 524-6228

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