of the wintering locations for the black-necked crane, a vulnerable species of which only 4,000 are believed to be alive as of 1996. Notes References Bibliography External links The course of the Nyamjang Chu marked on OpenStreetMap Gorsam Chorten (photograph by Amar Grover), AWL Images, retrieved 10 July 2020. Ranju Dodum, Lax policies cause of concern for conservation, 'ranjuwrites' (blog), 13 April 2017. Rivers of Tibet Rivers of Arunachal Pradesh Shannan, Tibet Tawang district China–India border