WHAT IS A LINE?// EL CAPITAN General research

http://en.wikipedia.org/wiki/El_Capitan

http://www.summitpost.org/el-capitan/150993


http://www.ukclimbing.com/articles/page.php?id=143

http://www.gizmag.com/go/8192/

http://www.ehow.com/how_2093138_climb-el-capitan-yosemite.html

http://www.stanford.edu/~clint/yos/elcapd.txt


http://www.nytimes.com/2011/09/06/us/06yosemite.html?pagewanted=all