http://www.amazon.com/DARREN-KNEZEK-Canyon-Climbing-Guidebook/dp/098547940X
http://www.amazon.com/Climbers-American-Canyon-Regional-Climbing/dp/0934641889
http://www.amazon.com/gp/aw/d/0976523558/ref=mp_s_a_1_1?qid=1423372305&sr=8-1&keywords=zion+rock+climbing&pi=AC_SY200_QL40&dpPl=1&dpID=51MHmZtVIQL&ref=plSrch