World’s Highest Railway Tunnel Opens In China
The world’s highest tunnel for high-speed trains in northwest China at an altitude of 3,607.4 metres became operational on 1 May. The 16.3-km-long was completely linked up, operationalising the line linking Gansu Province and Xinjiang provinces. With altitudes of up to 3,607.4 metres, the tunnel passes through the Qilian Mountains with two sections and a bridge. The construction of the highest tunnel started in 2009.


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