Чёрные горы
The Black Mountains, lie to the east of the Sankosh River. Midway between Punakha and Trongsa, they separate western Bhutan from the ethnolinguistically diverse central regions and the densely populated eastern regions. The Black Mountains themselves spur ramifications to the southwest and southeast, reaching into Trongsa District. Pele La pass at is historically and modernly the most important pass in the Black Mountains.