30,000-year-old Relics Reveal Pre-historic Civilization along Qinghai-Tibet Railway 2006-06-24 13:59:42 Xinhua Chinese archaeologists claim that relics unearthed in the areas along the Qinghai-Tibet Railway proved that human beings lived there at least 30,000 years ago. Archaeologists with the 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 railway runs through, during recent excavations. More than 30 stone implements were also discovered at the site of Sancha River bridge on the...