Where the Yarlung Tsangpo Enters the Great Canyon

A Nyingchi municipal profile traces the Yarlung Tsangpo Grand Canyon from Daduka Village in Pai Township, Milin, south through the bend near Pailong and on to Baxika Village in Motuo. It gives the route a human geography: the canyon crosses from Milin into Motuo, and its main reach lies within Motuo. The profile’s stated endpoints are more useful than a superlative because they show where the river corridor begins and where it leaves the high mountain region.

The same municipal account reports a length of 504.6 kilometres, a maximum depth of 6,009 metres and an average depth of 2,268 metres, citing figures attributed to the national mapping authority. Those figures belong to that published account and its measurement method; they should not be mixed with figures for the separate Palong Tsangpo tributary canyon or used as if every point along the route had the same cross-section.

Near Pailong, the Yarlung Tsangpo turns around the Namcha Barwa massif before continuing south. The canyon profile places this bend within a much longer course that reaches from the Milin entrance area toward Motuo and Baxika. The bend is one passage in a river route, not a separate canyon with its own endpoints.

The shape of the route helps explain why the word “canyon” can hide several different landscapes: upper slopes, tributary valleys, a sharp river turn and lower reaches near Baxika. A reader following the river on a map moves between them in sequence. Each viewpoint belongs to a particular place along that passage and should be named accordingly.

The municipal profile describes the canyon as a route through strong relief, from high mountain terrain to low river country. That scale is visible in the named endpoints: Daduka near the upper entrance and Baxika toward the southern end. It also means that “the canyon” is not one uniform environment. Villages, tributary mouths, forest zones and access roads belong to different reaches and should be identified separately.

The published figures offer a way to picture scale, not a substitute for local histories or ecological surveys. The available pages do not provide a current, site-by-site account of habitat change or household life along the whole route. A fuller feature would follow one settlement or tributary at a time, combining river measurements with voices from the valley. For now, the reliable story is the river’s long passage: it enters near Daduka, bends by Pailong, crosses into Motuo and continues toward Baxika.