This area is very popular with mountain bikers. Please stay alert while on the trails and respect other users.
Follow the signed trail straight East out of the main Phil's World parking lot. Stay on the left trail as the one on the right is the incoming route that you'll be coming back on. The trail weaves through sagebrush on mostly flat terrain for a bit before dropping into a drainage where you'll cross a wide wooden bridge and climb out the other side.
After another short flat, stagebrush section, the trail does a short, slightly rocky, switchback climb to the mesa top where it continues it's flat route circling the front half of the mesa. Near the middle of the mesa there is an intersection with the Hippie House loop. The shortest, easiest route is to stay right and continue around the mesa. Hippie House loop goes off to the left and extends the run by a few miles and then comes back in at this same spot.
Eventually the singletrack drops back off the mesa, recrosses the drainage over another wooden bridge, and back through the sagebrush to the parking lot.