Jamanxim River

Jamanxim River
Bridge over the Jamaxim
Mouth location in Brazil
Native name	Rio Jamanxim (Portuguese)
Location
Country	Brazil
Physical characteristics
Source
• location	Serra do Cachimbo, Pará
• elevation	460 m (1,510 ft)
Mouth
• coordinates	4°45′23″S 56°26′15″W / 4.756260°S 56.437500°W / -4.756260; -56.437500
• elevation	40 m (130 ft)
Length	510 km (320 mi)[1]
Basin size	58,771 km2 (22,692 sq mi)[2]
Discharge
• location	Near mouth
• average	(Period: 1971–2000)2,217.9 m3/s (78,320 cu ft/s)[2]
Basin features
Progression	Tapajós → Amazon → Atlantic Ocean
River system	Tapajós

The Jamanxim River is a river of Pará state in north-central Brazil. Originating in the Serra do Cachimbo, it is a tributary of the Tapajós, into which it flows a few kilometers upstream from Itaituba.