There is no such thing as a "river ocean".
there is no picific ocean.
Colorado River
No it is a river.
red river
The largest South American river whose mouth is on the Atlantic Ocean is the Amazon. It has the largest drainage basin of any river in the world.
it is the Columbia river.
Colorado River
That would be the Lena. It is the 10th longest river in the world and has the 9th largest watershed. It flows through Siberia into the Laptev Sea, which is part of the Arctic Ocean.
The Congo River
The Orinoco (River) is the largest river of Venezuela. It is the 2nd-largest (by volume) of South America, and the 4th-largest in the world. It flows from eastern Colombia into the Atlantic Ocean near Guyana, just east of the Caribbean Sea.
The Amazon River is the largest river in the world. It begins in the Andes Mountains and stretches to the Atlantic Ocean.
The Columbia river