This is about an 80 square kilometer (30 sq.mi) area with many kilometers of trail, probably around 60 km (40 mi) of trail. It is made up of mostly forested mountain slopes and also long valleys that can be forested or open in the bottoms.
The Selbe Gol Valley makes up the entire western border, and the Uliastai Gol and a west fork of the Uliastai Gol form the eastern border. The southern portion begins around Shargamorit and Selbe Camp. The northern border is the Khandgait Valley.
The area is about as long as it is wide in the longest axes and is quite broken with the many slopes and valleys breaking off high ridges. The highest elevations are around 2120m (6950 ft) and the lowest around 1400m (4700ft).
There are trails everywhere, and they are randomly but well connected. The trails are a mix of singletrack, two track (not double wide ST but two narrow ST side by side from jeep use) and some 4x4 road. Most climbs are moderate to difficult and most descents very fast.
The trails run up and down the valleys, along ridge tops, contour slopes and sometimes drop straight down slopes. Several relatively close up Google Earth sat images are essential to finding trails and exploring the area.