The China Geological Survey carried out 1:250000 regional geological surveys of the Qinghai-Tibet Plateau from 1999 to 2005. With a total investment of 300 million yuan, more than 1000 geologists were involved annually to conduct mapping at a grid of one line to every four km along the Kunlun Mts-Altyn Shan-Tanggula Shan, Kokoxili-Qiangtang, Gangdese, Yalun Zangbu River, and finally to the Himalayan ranges. The extensive mapping culminated in a total of 112 maps The China Geological Survey carried out 1: 250000 regional geological surveys of the Qinghai-Tibet Plateau from 1999 to 2005. With a total investment of 300 million yuan, more than 1000 geologists were involved annually to conduct mapping at a grid of one line to every four km along the Kunlun Mts-Altyn Shan-Tanggula Shan, Kokoxili-Qiangtang, Gangdese, Yalun Zangbu River, and finally to the Himalayan ranges. The extensive mapping culminated in a total of 112 maps