Yom River

Yom River แม่น้ำยม
Yom River in Doi Phu Nang National Park near Chiang Muan
Map of the Chao Phraya River drainage basin showing the Yom River
Location
Country	Thailand
Physical characteristics
Source
• location	Bun Yuen village, Pong district, Phi Pan Nam Range, Phayao Province
• elevation	347 m (1,138 ft)
Mouth	Nan River
• location	Chum Saeng district, Nakhon Sawan province
• elevation	28 m (92 ft)
Length	700 km (430 mi) [1]
Basin size	24,047 km2 (9,285 sq mi)
Discharge
• location	Nakhon Sawan
• average	103 m3/s (3,600 cu ft/s)
• maximum	1,916 m3/s (67,700 cu ft/s)
Basin features
Tributaries
• right	Ngao River

The Yom River (Thai: แม่น้ำยม, RTGS: Maenam Yom, pronounced [mɛ̂ː.náːm jōm]; Northern Thai: น้ำแม่ยม, pronounced [náːm mɛ̂ː.ɲōm]) is a river in Thailand. It is the main tributary of the Nan River (which itself is a tributary of the Chao Phraya River). The Yom River has its source in the Phi Pan Nam Range in Pong District, Phayao Province. Leaving Phayao, it flows through the Phrae and Sukhothai provinces as the main water resource of both provinces before it joins the Nan River at Chum Saeng District, Nakhon Sawan Province.