Ngao River

Ngao River
Ngao River in Ngao town
Native name	แม่น้ำงาว (Thai)
Location
Country	Thailand
State	Phayao Province, Lampang Province, Phrae Province
City	Ngao town
Physical characteristics
Source
• location	Phi Pan Nam Range, Phayao Province
• elevation	1,267 m (4,157 ft)
Mouth	Yom River
• location	Kaeng Suea Ten area, Song District, Phrae Province
• coordinates	18°35′54″N 100°8′53″E / 18.59833°N 100.14806°E / 18.59833; 100.14806
• elevation	195 m (640 ft)
Length	98 km (61 mi)
Basin size	1,800 km2 (690 sq mi)

The Ngao River (Thai: แม่น้ำงาว, RTGS: Maenam Ngao, pronounced [mɛ̂ː.náːm ŋāːw]; Northern Thai: น้ำแม่งาว, pronounced [náːm mɛ̂ː.ŋāːw]) is a river of Thailand with its source in the Phi Pan Nam Range. It is a tributary of the Yom River, part of the Chao Phraya River basin.^[1]

The Ngao in this basin should not be confused with the Ngao River that is a tributary of the Yuam River (แม่น้ำยวม), part of the Salween basin, located to the west.^[2]

• Tributaries of the Chao Phraya River