“The Great Bend” sounds like a single landmark, but Nyingchi’s own geographic profile cautions that the Yarlung Tsangpo makes many major turns. In its narrower usage, the name refers to the river’s dramatic bend around Namcha Barwa near Pai. In a broader local usage, the same phrase is also applied to Guoguotang, about 12 kilometres from Motuo county seat. The labels overlap; the river locations do not.
This is more than a naming puzzle. Pai lies in the Milin side of the great-canyon landscape, where the river turns around the eastern Himalayan massif. Guoguotang is farther downstream in Motuo, at Dexing Township. A visitor looking up the phrase without checking the place name can arrive at a different stretch of river from the one intended.