Okpara River

[2] Originating in Borgou Department, it flows south and becomes the border between Nigeria and Benin before re-entering Benin and flowing into the Ouémé River, which ultimately drains into the Atlantic Ocean.

[4][5] Report says that the Okpara River heavily contaminated by toxic metals.

It is a Stream body of running water moving to a lower level in a channel on land.

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