Fun fact: Petrified Forest was designated a national monument on Dec. 8, 1906. It became a national park on Dec. 9, 1962. Where: North and south of Interstate 40 about 20 miles east of Holbrook.

Experts say the first groups of released mice are breeding and repopulating the South East Forest National Park. Up to nine other locally extinct animals will be released into the predator-free ...

Yet travel experts claim there is a lesser-known, but no less stunning, park in the copper state that could be even better. Arizona's Petrified Forest National ... north or south, where they ...

Petrified Forest National Park is 200 miles or about 3.5 hours from Phoenix. The northern entrance is at Exit 311 off I-40. The southern entrance is 19 miles east of Holbrook off U.S. 180.