Workers use an excavator to clear explosive remnants after successfully blasting through the final section of the Galongla Tunnel in Bome county, Southwest China's Tibet autonomous region, Dec 15, 2010. The Galongla Tunnel, built at an altitude of 3,750 meters, is a highway tunnel that links Tibet's Metok county to the outside world. It took more than two years to complete the construction. The highway is scheduled to open in 2011. Metok county, with a population of 11,000, is China's last county with no highway link. [Photo/Xinhua]
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