Head west from the THD on a 4WD two track. Go about quarter of a mile (~0.5km), and you will reach a small opening in the forest. Here you can continue in multiple directions -- north, south or west. Do not head south. That leads you to the Chengeltei Mountain South trails. If you head west, you will be riding Two Dogs clockwise. If you head north, you will be riding the trail counter-clockwise. I have no preference. The trail rides great in both directions. The north trail is the main trail through the Chengeltei Mountain North system. Overall, this loop requires a little navigation, but nothing major for Mongolia. If you review the trail map page for the general layout of the trail and do a little pre-ride preparation on Google Earth, then you should be just fine. It is a little easier to find your way the first time, if you ride the trail clockwise. Ride it both ways for a nice moderate ride that is very high on the fun factor.