Ing River

The Ing River (Thai: น้ำแม่อิง, RTGS: Nam Mae Ing, pronounced) is a tributary of the Mekong River in the northern part of Thailand. It has its source in Doi Luang, Phi Pan Nam Range, in Mae Chai District, Phayao Province. The Ing flows through the plain area of Thoeng District.

The Ing Watershed is one of the most abundant watersheds in Thailand. It consists of rich natural resources and ecosystem diversity, including forests, mountains, rivers, stream tributaries, and watershed areas. The 260-kilometer basin river flows from Phayao Province to Chiang Rai Province in Northern part of Thailand before linking to Mekong River.