http://chattanoogadiscounts.blogspot.com/2012/07/ruby-falls-chattanooga.html
http://pinelaketheblog.blogspot.com/2012/09/ruby-falls-and-home.html
http://en.wikipedia.org/wiki/Ruby_Fallshttp://fieldtripswithsue.com/chattanooga-tn/
http://www.google.com/imgres?imgurl=&imgrefurl=http%3A%2F%2Fwww.southeasttennessee.com%2Fwww%2Fdocs%2F779.2663&h=0&w=0&sz=1&tbnid=hHHf04oX5eU1UM&tbnh=216&tbnw=233&zoom=1&docid=kRVQvQHMK_vqnM&ei=wH1gUvGQA5Lg8wSIwoCACg&ved=0CAEQsCU
http://www.southernhighlands.org/tennessee.htm
http://www.shltrip.com/Amazing_Lookout_Mountain.htmlhttp://factsanddetails.com/world.php?itemid=2213&subcatid=323
http://www.oldearth.org/curriculum/geology/geology_chapter_5.htm
http://www.ig.utexas.edu/news/seminars/fall12/kite.htm
http://scienceblogs.com/startswithabang/2009/04/27/what-wiped-out-the-dinosaurs/
http://geology.com/rocks/quartzite.shtml
http://hyperphysics.phy-astr.gsu.edu/hbase/geophys/gneiss2.html
http://pinelaketheblog.blogspot.com/2012/09/ruby-falls-and-home.html
http://en.wikipedia.org/wiki/Ruby_Fallshttp://fieldtripswithsue.com/chattanooga-tn/
http://www.google.com/imgres?imgurl=&imgrefurl=http%3A%2F%2Fwww.southeasttennessee.com%2Fwww%2Fdocs%2F779.2663&h=0&w=0&sz=1&tbnid=hHHf04oX5eU1UM&tbnh=216&tbnw=233&zoom=1&docid=kRVQvQHMK_vqnM&ei=wH1gUvGQA5Lg8wSIwoCACg&ved=0CAEQsCU
http://www.southernhighlands.org/tennessee.htm
http://www.shltrip.com/Amazing_Lookout_Mountain.htmlhttp://factsanddetails.com/world.php?itemid=2213&subcatid=323
http://www.oldearth.org/curriculum/geology/geology_chapter_5.htm
http://www.ig.utexas.edu/news/seminars/fall12/kite.htm
http://scienceblogs.com/startswithabang/2009/04/27/what-wiped-out-the-dinosaurs/
http://geology.com/rocks/quartzite.shtml
http://hyperphysics.phy-astr.gsu.edu/hbase/geophys/gneiss2.html