<p><a href="http://en.wikipedia.org/wiki/Casiquiare_canal">Casiquiare canal</a> is the world's largest bifurcation. Since such a large bifurcation seems unlikely to be produced and even less likely to stay for centuries, I wonder how old it is and why all the water didn't just stay in Orinoco.</p>

<earth-history><rivers><geography>
How old is Casiquiare canal?
Pavel V.
# How old is Casiquiare canal?

(Asked by: username_0 on 2014-09-17)

[Casiquiare canal](http://en.wikipedia.org/wiki/Casiquiare_canal) is the world's largest bifurcation. Since such a large bifurcation seems unlikely to be produced and even less likely to stay for centuries, I wonder how old it is and why all the water didn't just stay in Orinoco.

**Tags:** earth-history, rivers, geography


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