This trail can be ridden as a shuttle, an out and back, or a loop (using the main road of the park). It is described here as a shuttle though we usually do the loop. For any of the three options, you can park a car at the river or at the little paved parking lot above the river along the main road (see the way points on the trail map).
The trail consists mostly of double track and just a little ST, but don't let that discourage you from riding it. It is full of fast fun with a couple of nice climbs (about a mile long each) thrown in for the exercise. There is also ample opportunity to do some "no track" on big slopes and to play around on smaller rock formations.
The shuttle route is difficult to describe, but easy to see on a Google sat image. On the ST trail map, I have posted key waypoints to delineate the route.
The route is 10.6 miles long (17km) and has two main passes along the way. We have named it Camel Run because of the two main passes which can be likened to the two humped camels (bactrian camels) of Mongolia. Plus, there are camels in the area near the end of the shuttle (kind of cool).
The trail, beginning at the monastery, sits at 1722m (5650') in elevation and ends at the Tuul River at 1387m (4550') for an overall nice DH run. The two passes are 130m and 135m climbs, so they add another 265m (870') of descending. All the elevation drop is used well for high speed fun.
The final descent off the second pass is 4 km long (2.5 mi). It is a blast with lots of speed, good flow through the curves, a small jump or two, and a couple of short steep drops -- one of about 30' that you can take at high speeds and hope your tires hold in the scree.
All in all, Camel Run is a fast fun ride in some very beautiful country.