Probably The AMAZON RIVER. I have heard that it takes up to 3 years to walk the whole length.
Hudson river
Mississippi
Mississippi River is the name of the state and the largest river in the USA.
Mississippi River
The Arkansas River
Mississippi.
The second longest river the U.S is the Mississippi river
the Mississippi river
the answer is the Mississippi river:)
Connecticut river
The Mississippi River.
It's a river in the midwestern United States. It is the largest river in the US