Petrified Forest National Park
Located in the northeastern corner of Arizona, Petrified Forest National Park was designated a national monument in 1906. The trees within the park are over 225 million years old, and have over that period transformed into brilliantly-coloured minerals, the world's largest concentration of petrified wood. Aside from the trees, there is a variety of wildlife to see in the park, including bobcats, coyotes, owls, porcupines, mule deer, and various desert lizards and rodents. There are several trails leading to popular sites in the park, making it a great place for desert hiking. Visitors should be aware that it is illegal to remove petrified wood from Petrified Forest National Park.