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https://www.nps.gov/pefo/learn/historyculture/historic-route-66.htm
https://www.nps.gov/pefo/learn/news/new-reptile.htm
https://www.nps.gov/pefo/learn/paleontology.htm
https://www.nps.gov/pefo/learn/nature/animals.htm
https://www.nps.gov/pefo/learn/nature/plants.htm
History of the Park Sources:
https://www.nps.gov/pefo/learn/historyculture/paleo-people.htm
https://www.nps.gov/pefo/learn/historyculture/explorerssettlers.htm
https://www.nps.gov/pefo/planyourvisit/brief-administrative-history.htm
GEOLOGY:
https://www.nationalparkstraveler.org/parks/petrified-forest-national-park/geology-petrified-forest-national-park
https://hikearizona.com/decoder.php?ZTN=962
https://www.nps.gov/pefo/learn/nature/naturalfeaturesandecosystems.htm#:~:text=Petrified%20Forest%20has%20two%20geological,scientists%20reconstruct%20those%20ancient%20environments.
https://www.nps.gov/pefo/learn/nature/naturalfeaturesandecosystems.htm#:~:text=Petrified%20Forest%20has%20two%20geological,scientists%20reconstruct%20those%20ancient%20environments.https://www.nps.gov/pefo/learn/nature/naturalfeaturesandecosystems.htm#:~:text=Petrified%20Forest%20has%20two%20geological,scientists%20reconstruct%20those%20ancient%20environments.
https://www.nps.gov/pefo/indian.htm
https://thesimplehiker.com/blue-mesa-trail-hiking-guide-arizona/