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

    Petrified Forest

    National Park Arizona

Geology Gallery

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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?

Agate House pueblo made with petrified wood chunks

Petrified wood was so abundant when the ancestral Puebloan people were living in the area that they used it not only for stone tools but also as building material, such as the "brick" used in Agate House at Petrified Forest National Park.