The Source of the Mekong Dzachu, Tibetan for the Mekong River, is said to be sacred by nomads living on the Qinghai plateau. 2009.11.01 Related links: Traveling down the Mekong River Take a Quiz Quiz: Mekong River in Laos Quiz: Mekong River in Burma Quiz: Mekong River Quiz: Mekong in China Read the Blog The Mekong River is the longest river in Southeast Asia and supports the lives of 70 million people from Tibet to Vietnam. Our reporters undertook the journey to tell their stories. MORE Multimedia A Timeline of Xi-Kim Summit Meetings Cambodia’s Lower Sesan II Hydropower Dam prior to its initial test release China: Nobel Laureate Liu Xiaobo Hospitalized with Terminal Liver Cancer Cambodians Head to the Polls for Local Elections Cambodian Villagers Blame Mekong Collapse on Sand Dredging MOST READ RFA Chinese arrests jump nearly 50% amid clampdown on ‘hostile foreign forces’ China pushes ‘Sinicization of Islam’ in Xinjiang as Ramadan arrives Videos appear to show Myanmar military training Rohingyas North Koreans try to avoid forced construction work Military conscription poised to start in Myanmar’s Yangon