Look on a map. The longest is the Mississippi/Missouri river system.
Mississippi river
Rio grande
The Mississippi-Missouri system.
the Mississippi and Missouri rivers combined!!! :)
Colorado river is the longest river in us(1450 miles)
The two rivers that in the United States that make up the longest river system in north America are the Missouri and Mississippi river.
The longest river in the United States is the Mississippi
mississippi
The Amazon River is not the longest river in the US. It is the longest river in South America.
You would be on the Mississippi River if you were riding a paddleboat up the longest river in the US. The Mississippi River is the longest river in the US, stretching approximately 2,340 miles.
Mississipi-Missouri