Oyapock

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Find sources: "Oyapock" – news · newspapers · books · scholar · JSTOR (April 2014) (Learn how and when to remove this message)

Oyapock
View of the Oyapock River from Brazil toward French Guiana
Guyane Oyapock River map
Location
Countries	Brazil and France
Physical characteristics
Source
• location	Tumuk Humak Mountains
Mouth
• location	Atlantic Ocean
• coordinates	04°14′08″N 51°36′53″W / 4.23556°N 51.61472°W / 4.23556; -51.61472
Length	403 km (250 mi)
Basin size	30,869 km2 (11,919 sq mi)
Discharge
• location	Near mouth
• average	1,457 m3/s (51,500 cu ft/s)
Basin features
Bridges	Oyapock River Bridge

The Oyapock or Oiapoque (/ˈɔɪ.əpɒk, ɔɪ.əˈpoʊki/; French: Fleuve Oyapock [flœv ojapɔk]; Portuguese: Rio Oiapoque [ˈʁiu ɔjɐˈpɔki]) is a 403-kilometre (250 mi) long river in South America that forms most of the border between the French overseas department of French Guiana and the Brazilian state of Amapá.^[1][2]