Last Updated:2022/12/24

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.

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