DATASET: Tea and horse trade routes in Tibet, Szechwan and Yunnan circa 680-1950 CE - dataset 3
27 data points defining routes connecting Ya'an, Batang, Gartog, Qamdo, Golingka, Lhasa, Gyangze, and Xarsingma as well as Ning'er, Dali, Dayan, Dechen, and Gartog.
Beijing Portal. 2004. Ancient Chinese Highway: Tea Horse Road. (v. Jul 2004)
[a document most probably informed by research of Yang Fuquan 2004a & 2004b]
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