Petrified Forest National Park (redirected from Petrified Forest National Park, Arizona)

Petrified Forest National Park, 93,533 acres (37,881 hectares), E Ariz.; est. as a national monument 1906, designated a national park 1962. A part of the Painted Desert, it contains the largest known display of petrified wood in the world. There are six separate "forests," with great logs of jasper and agate lying on the ground surrounded by the varied colors of endless fragments and small chips. Dating from the Triassic period, these "stone trees" were killed by natural processes, such as fire, insect attacks, and fungus (or rot). The trees were deeply buried in mud and sand that contained silica-rich volcanic ash. The logs became petrified as the mineral, carried into the wood by groundwater, replaced the wood cells. As the surrounding material was eroded away, the petrified trees were exposed on the surface. Prehistoric Native Americans lived among the stone trees; ruins of their dwellings and their petroglyphs (ancient rock art) remain. Although the first known report of the petrified forests was made by Lt. Lorenzo Sitgreaves, an army officer who explored the area in 1851, they were virtually unknown until the late 1870s. See National Parks and Monuments (table).

---

Petrified Forest National Park

National park, eastern Arizona, U.S. Established as a national monument in 1906 and as a national park in 1962, it has an area of 146 sq mi (378 sq km). It features extensive exhibits of petrified wood in several “forest” areas, fossilized leaves, plants, and broken logs, and the Painted Desert. Other features include petroglyphs and ancient Pueblo Indian ruins.

---

Petrified Forest National Park

Parks Directory of the United States / US National Parks / National Parks

Address: PO Box 2217
Petrified Forest, AZ 86028
Phone: 928-524-6228;
Fax: 928-524-3567;
Web: www.nps.gov/pefo/
Size: 221,540 acres.
Established: Proclaimed as a national monument on December 8, 1906; established as a national park on December 9, 1962. Wilderness designated on October 23, 1970.
Location: Stretches between I-40 and US 180 in eastern Arizona. North entrance to the park is 26 miles east of Holbrook off I-40, and south entrance to the park is 19 miles east of Holbrook off US 180.
Facilities: Picnic area, rest rooms (é), restaurant/snacks, visitor center (é), museum/exhibit, self-guided tour/trail. Entrance fee required.
Activities: Hiking, bicycling, horseback riding, auto touring, ranger-guided tours.
Special Features: Park features one of the world's largest and most colorful concentrations of petrified wood. Also included are the multi-hued badlands of the Chinle Formation known as the Painted Desert, historic structures, archeological sites, and displays of 225 million-year-old fossils that feature some of the earliest known dinosaurs of North America.

---

See other parks in Arizona.