This trail runs east from Lone Tree Mountain Pass and provides access to the top of Lone Tree Mountain. It runs along the top ridge of the Bayanzurkh Uul range for about 1.25 miles and climbs 620' (189m) to reach the peak. It is a mix of singletrack and doubletrack. At about the 0.75 mile mark (1.2km), you can shorten the access to the top by heading east straight up the mountain. It is about a 0.25 mile (0.4 km) hike-a-bike to the top on 25-35% sustained slope. So it's quite a bit shorter but steep. This portal trail provides upper access to the Lone Tree Mountain East Loop trail and other trails intersect the portal along the way.