Chin-sha

The boundary between Tibet and China settled by the Manchu Emperor and the Tibetans in 1727 and lasting down to 1910 ran from the Mekong just north of A-t'un-tzu, crossed northward into the Chin-sha Chiang valley and followed the water divide between the Chin-sha and the upper Mekong sources to the Kokonor Territory.

1954, Herold J. Wiens, “The South China geographical environment”, in Han Chinese Expansion in South China, Shoe String Press, published 1967, →LCCN, →OCLC, →OL, page 22

The Yun-Kwei region, a plateau in which virtually no rivers are navigable and all official and commercial transport moved by land, was defined to include the upper reaches of the Hung-shui (a tributary of the West River), of the Wu (a tributary of the Yangtze), and of the Chin-sha (as the Yangtze is known along its upper course) from approximately the point where each becomes unnavigable even for small junks.

1986, G. William Skinner, “Regional Urbanization in Nineteenth-Century China”, in The Chinese: Adapting the Past, Building the Future, →ISBN, →OCLC, page 106; “Regional Urbanization in Nineteenth-Century China”, in The Chinese: Adapting the Past, Facing the Future, 2nd edition, 1991, →ISBN, →OCLC, page 125