From PTI, via The Hindu News:
Chinese archaeologists claim that relics unearthed in areas along the strategic Qinghai-Tibet Railway have proved that human beings lived there atleast 30,000 years ago.
Experts with Qinghai Provincial Archaeological Institute said they collected large number of chipped stone tools including knives and pointed implements dating back 30,000 years in the Tuotuo River valley, Hoh Xil, a habitat for Tibetan antelopes, and Qaidam Basin, where the world’s highest railway runs through, during recent excavations.
More than 30 stone implements were also discovered at the site of Sancha River bridge on the Qinghai-Tibet railway, located in Golmud, a city over 70 km to the north of Kunlun Mountains, head of the Qinghai Provincial Archaeological Institute, Xu Xinguo said. [Full Text]