Ituí River

The Ituí River is a river of the upper Amazon Basin. It traverses some 370 km of the Atalaia do Norte municipality in the Amazonas state of north-western Brazil. It drains a very low gradient, dropping hardly 100 m over its whole extent, which results in extensive meandering. The Rio Negro, Beija-flor and Branquinho are some of its western tributaries, while the Rio Novo is its main eastern tributary. Downstream it joins the Itaquai River to form the upper Solimões.

Ituí River
Location
Country	Brazil
State	Amazonas
Physical characteristics
Source
• location	Sierra del Divisor
• coordinates	7°5′4.8372″S 72°34′7.4028″W
• elevation	198 m (650 ft)
Mouth	Javary River
• location	Atalaia do Norte, Amazonas
• coordinates	4°22′19″S 70°11′31″W
• elevation	62 m (203 ft)
Length	480 km (300 mi)[1] to 558 km (347 mi)[2]
Basin size	43,035 km2 (16,616 sq mi)[3] to 43,403.1 km2 (16,758.0 sq mi)[2]
Discharge
• location	Atalaia do Norte (near mouth)
• average	(Period: 1970–2000)2,322.6 m3/s (82,020 cu ft/s)[2] (Period: 1979–2015)2,422.1 m3/s (85,540 cu ft/s)[3]
Basin features
Tributaries
• left	Rio Negro, Branquinho, Quixito
• right	Novo, Itaquai