Fall 2013: Highway Interchange Bridge Work
Painted Desert Traffic Interchange (I-40 Exit 311) may be closed for construction. Check here for updates from Arizona Department of Transportation (ADOT): More »
Nov. 2012-July 2013, due to bank error credit cards may not have been charged for your entrance fee
...due to a bank error credit cards may not have been charged for your entrance fee, even if you received a receipt from the entrance station. The error was corrected on Sept. 26th, 2013. We apologize for any inconvenience this may have caused.
Learning Center Lecture Series June 2007
Contact: Bill Parker, (928) 524-6228 ext. 262
Petrified Forest National Park Learning Center Lecture Series, June 2007
Petrified Forest, AZ ― Geologist Dr. Nancy Riggs of Northern Arizona University will be providing an hour-long presentation titled “How old is the Petrified Forest?” as part of the park’s ongoing Learning Center Lecture Series. The lecture will discuss the use of isotopic dating to determine the age of ancient rocks, with emphasis on the Chinle Formation of Petrified Forest National Park. The lecture will begin at 10:00 a.m. on Wednesday, June 6, and will be held at the Painted Desert Visitor Center Community Building in Petrified Forest National Park. The Painted Desert Visitor Center is located at Exit 311 on Interstate Highway 40. This lecture is open to the public and admission is free.
The Petrified Forest National Park Learning Center was established to bring park visitors and researchers together to foster understanding and appreciation of the natural and cultural resources of the park and the Colorado Plateau. Lectures are held the first Wednesday of each month on a variety of topics including geology, paleontology, archaeology, and biology.
For more information call (928) 524-6228 weekdays, 8:00 a.m. to 4:00 p.m. Mountain Standard Time; or write to the Superintendent, Petrified Forest National Park, P.O. Box 2217, Petrified Forest, AZ 86028; or e-mail the park.
Did You Know?
The ecosystem at Petrified Forest National Park is not desert. It's one of the largest areas of intact grassland in the Southwest. More...