Citations/Resources:
Butler, Bill. "Evolution of the Colorado River and its Tributaries." Durango Bill's. N.p., n.d. Web.
7 Mar. 2012. <http://www.durangobill.com/PaeoriversPart3.html>.
"The Geology of the Grand Canyon." Grand Canyon Explorer. N.p., 1994-2009. Web. 7 Mar. 2012.
<http://www.bobspixels.com/kaibab.org/geology/gc_geol.htm>.
"Geography of the Colorado River." About.com Geography. N.p., 2012. Web. 7 Mar.
2012. http://geography.about.com/od/unitedstatesofamerica/a/colorado-river.htm>.
Cactus Jim. "Colorado River." Desert USA. N.p., 1996-2012 . Web. 7 Mar. 2012.
<http://www.desertusa.com/colorado/intro/du_introcr.html>.
Reclamation. N.p., Aug. 2011. Web. 7 Mar. 2012.
<http://www.usbr.gov/lc/hooverdam/>.
7 Mar. 2012. <http://www.durangobill.com/PaeoriversPart3.html>.
"The Geology of the Grand Canyon." Grand Canyon Explorer. N.p., 1994-2009. Web. 7 Mar. 2012.
<http://www.bobspixels.com/kaibab.org/geology/gc_geol.htm>.
"Geography of the Colorado River." About.com Geography. N.p., 2012. Web. 7 Mar.
2012. http://geography.about.com/od/unitedstatesofamerica/a/colorado-river.htm>.
Cactus Jim. "Colorado River." Desert USA. N.p., 1996-2012 . Web. 7 Mar. 2012.
<http://www.desertusa.com/colorado/intro/du_introcr.html>.
Reclamation. N.p., Aug. 2011. Web. 7 Mar. 2012.
<http://www.usbr.gov/lc/hooverdam/>.