views updated May 18 2018

Mekong River in se Asia. It rises in Tibet as the Lancang Jiang and flows s through Yünnan province, China. It forms the Burma-Laos border and part of the Laos-Thailand border and then flows s through Cambodia and Vietnam, creating a vast river delta that is one of the most important rice-producing regions in Asia. Length: c.4180km (2600mi).