Nan River

Nan River
Nan River at Mueang Uttaradit District, Uttaradit Province
Map of the Chao Phraya River drainage basin showing the Nan River
Location
Country	Thailand
Cities	Nan, Uttaradit, Phitsanulok, Phichit, Nakhon Sawan
Physical characteristics
Source	Luang Prabang Range
• location	Bo Kluea District, Nan Province
• coordinates	19°20′0″N 101°12′0″E / 19.33333°N 101.20000°E / 19.33333; 101.20000
• elevation	1,240 m (4,070 ft)
Mouth	Chao Phraya
• location	Pak Nam Pho, Nakhon Sawan
• coordinates	15°42′04″N 100°08′31″E / 15.701°N 100.142°E / 15.701; 100.142
• elevation	25 m (82 ft)
Length	740 km (460 mi)[1]
Basin size	57,947 km2 (22,373 sq mi)
Discharge
• location	Nakhon Sawan[2]
• average	472 m3/s (16,700 cu ft/s)
• maximum	1,522 m3/s (53,700 cu ft/s)
Basin features
Tributaries
• left	Lam Wa, Nam Pat, Khwae Noi River, Wang Thong River
• right	Yom River

The Nan River (Thai: แม่น้ำน่าน, RTGS: Maenam Nan, pronounced [mɛ̂ː.náːm nâːn]; Northern Thai: น้ำแม่น่าน, pronounced [náːm mɛ̂ː.nâːn]) is a river in Thailand. It is one of the most important tributaries of the Chao Phraya River.