There is a section on a lower part of the trail. I looked at the map, and compared it to the rollover. If you know the trail, not far from the start, before you get to the two major obstacles, there is an section that is off camber towards the cliff. To make it more interesting, the whole area is about twelve feet wide between a large boulder and the edge of the cliff. For me, it is the scariest part of the trail. I think that is where it happened, and it looks like they were headed off the trail. After that corner, there is really not much to worry about. It is about a hundred, to hundred fifty foot drop to Kane Creek rd.