Local people wave hadas to welcome the passing of the passenger train coded "Qing 1" at one end of the Tuotuo River Bridge in southwest China's Qinghai Province, July 1, 2006. As the first train to Tibet, "Qing 1" left Golmud in Qinghai Province at 11:05 a.m. Saturday and is expected to arrive in Lhasa around midnight. The Qinghai-Tibet railway begins operation on Saturday. [Xinhua Photo]

The passenger train coded "Qing 1" passes the Tanggula Mountain Pass with an altitude of 5,072 meters above sea level, the highest of world's railway, in southwest China's Tibet Autonomous Region, at 18:37 on July 1, 2006. [Xinhua Photo]

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