You were looking for:
First Beijing-Tibet train begins final leg of maiden journey up Tibetan plateau
Continue to the storyChina's first train from Beijing to Tibet began the final leg of its journey Monday on the world's highest railway, climbing past 13,000 feet on the Tibetan plateau and causing pens and packaged foods aboard to burst in the thin air. Some passengers began breathing piped-in oxygen from tubes to cope with the high altitude. Many Tibetan passengers on the Beijing-Lhasa train spoke glowingly of it, but it was unclear whether these were candid answers, because dozens of Chinese Foreign Ministry officials were also on board.