• Jasper Forest is magical in twilight, particularly the logs on stone pedestals

    Petrified Forest

    National Park Arizona

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,
 

Did You Know?

telephone poles mark Historic Route 66

Petrified Forest National Park is the only national park unit to protect a section of Historic Route 66!