My Zion: Canyoneering guidebook covers canyons in Zion and the adjacent lands. There are 9 on-trail hikes, 8 off-trail (non-technical) canyons, and 32 technical canyon adventures detailed, only a few of which have not really been public before. Careful beta and maps are provided, to hopefully keep people from getting lost. Interesting reviews from my fans and detractors are available on