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...