Casiquiare river
                    General data
- Name: Casiquiare river
 - Water system: Rio Negro
 - Water type: Distributary
 - Source: Orinoco
 - Progression: Rio Negro -> Amazon -> Atlantic Ocean -> Planet Earth
 - Climates: Tropical
 - Continents: South America
 - Countries: Venezuela
 
The Casiquiare river is a distributary of the upper Orinoco flowing southward into the Rio Negro, in Venezuela, South America. As such, it forms a unique natural canal between the Orinoco and Amazon river systems. It is the world’s largest river of the kind that links two major river systems, a so-called bifurcation. The area forms a water divide, more dramatically at regional flood stage.