Editor's Note:
The Sanjiangyuan National Nature Reserve is located on the Central Tibetan Plateau and covers the southern and eastern parts of Qinghai Province, which contains the headwaters for three major rivers: Yellow River, Yangtze River, and Lancang River (or the upper Mekong River). Photos: CFP
Pictured is the origin of the Yellow River in Maduo county, Guoluo Tibetan Autonomous Prefecture, in Northwest China’s Qinghai Province on October 2, 2012. 
Pictured is the Zhaqu River, the source of the Lancang River, in Yushu Tibetan Autonomous Prefecture, Northwest China’s Qinghai Province on June 12, 2015.
