Completion of the railroad to Lhasa.
West
John B
JB
D002681:China; D005101:Expeditions; D049673:History, 20th Century; D006801:Humans; D000860:Hypoxia / Q000266:history*; D009784:Occupational Diseases / Q000266:history*; D011890:Railroads / Q000266:history*