Jim Preston, a long time MTBer on Moab trails, explains the Mag 7 Trails and what to expect on them. Starting in the spring of 2018 Jim will be shooting videos of the most interesting parts of trails with his GoPro on a new Evo SS gimbal and will include them in a future update of this video.
Updates kill the existing video so don't link to this.
Subscribe to this channel or to Jim's MTB blog at http://jimprestonmtb.com for videos plus more information. Jim also answers south Utah trails and travel questions on http://forums.mtbr.com/utah/