"This technically and physically difficult ride can be done as a loop or as an out-and-back, with a turnaround point at a beautiful arch or at the rim overlooking Moab Valley a few more miles to the north. The trek starts with a relentless climb over little babyheads, leads through areas of deep sand and technical bedrock, then eventually flattens out into a ledgy romp. After some sandy curves and a bit of confusing route finding you are presented with some outrageously steep slickrock knobs that are a blast to ride for advanced cyclists.
Once on the slickrock the ride can be freeformed by those with good navigating skills, or you can follow the trail markings that appear as little jeeps. Keeping the jeeps oriented in the same direction is the secret to following the trail out to the rim. At any point you may also simply turn around and go back the way you came in. Trail Surface: 4WD doubletrack, slickrock, and extremely technical and dangerous singletrack, if you choose to take the Portal Trail option. Loose rock, stream worn rocks up to the size of babyheads, deep sand, slickrock, hardpack to loose sedimentary soil, and bedrock ledges on a classic technical 4WD track."