Original: It is located above mean sea level at the foot of the Khamar-Daban and Khrebet Ulan-Burgasy mountain ranges , next to the confluence of the Selenga River and its tributary , the Uda which divides the city into two parts .
Simplified: It sits at the foot of the Khamar-Daban and Khrebet Ulan-Burgasy mountain ranges , next to the confluence of the Selenga River and its tributary , the Uda .