Petrified Forest National Park, located in northeastern Arizona, features the world’s largest collection of petrified wood. Petrified wood is a type of fossil, in which the tissues of a dead plant are replaced with minerals. Petrified wood can be a range of different colors, depending on the mineral that has replaced the wood. For example, wood petrified with iron would be reddish in color.
American National Parks
Click on a park labeled on the map above to learn more about each park.