Namling is the current administrative name given to the valleys of Oyuk, Tobgyet, and Shang ... ()... with both Buddhism and Bon. Through these valleys respectively flow the Nang-gung-chu'mang ra chu'' Tobpu-chu, and Shang-chu rivers, with their various tributaries, which rise amid the southern slopes of the Nyenchen Tanglha range to the north, and flow southwards to converge with the Brahmaputra (the Yarlung Tsangpo River in Tibet ).