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Sources

  • Canyon Ministries.
    http://www.canyonministries.com/.
  • "Creationism." Stanford Encyclopedia of Philosophy. Metaphysics Research Lab, CSLI, Stanford University. 2007. http://plato.stanford.edu/entries/creationism/.
  • "Grand Canyon Geology." Zion National Parks. Zions Works. http://www.zionnational-park.com/ggeology.htm.
  • "Grand Canyon Geology - Geological Foundations." Scenic Airlines. Scenic.com. http://www.scenic.com/np1_gc_detailed_geology.htm.
  • "Grand Canyon National Park." GORP. Orbitz Away LLC. http://gorp.away.com/gorp/resource/us_national_park/az_grand.htm.
  • Grand Canyon National Park. U.S. National Park Service. U.S. Department of the Interior. http://www.nps.gov/grca/.
  • "Grand Canyon Skywalk at Grand Canyon West Celebrates One Year Anniversary." Destination Grand Canyon. 2008. http://www.destinationgrandcanyon.com/mar08release.html.
  • "Ecological Subregions of the United States." U.S. Forest Service. http://www.fs.fed.us/land/pubs/ecoregions/ch36.html.
  • "Hualapai Nation." Destination Grand Canyon. http://www.destinationgrandcanyon.com/history.html.
  • "Images: The skywalk over the Grand Canyon." CNET News.com. 2007. http://www.news.com/2300-1008_3-6169001-6.html?tag=ne.gall.pg.
  • NETSTATE.
    http://www.netstate.com/states/geography/in_geography.htm.
  • The Official Site of the Grand Canyon Skywalk. http://www.grandcanyonskywalk.com/.
  • "Seven Natural Wonders of the World." Good Morning America. ABC News. http://abcnews.go.com/GMA/7Wonders/popup?
    id=2550335&contentIndex=1&start=false&page=5.
  • The Theodore Roosevelt Association. http://www.theodoreroosevelt.org/kidscorner/Grand_Canyon.htm.
  • Wilgoren, Jodi. "Seeing Creation and Evolution in Grand Canyon." The New York Times. 2005. http://www.nytimes.com/2005/10/06/science/
    sciencespecial2/06canyon.html?_r=1&oref=slogin.