Answer: The Mississippi River is 2,350 miles long
begin in Lake Itasca in the state of Minnesota and ends in the Gulf of Mexico
b. How many tributaries feed the Mississippi River? 250 tributaries, provide 2,350 miles of navigable waterways and drains over 1.2 million square miles or 40% of the United States.
The word "Mississippi" comes from a Native American word meaning "Great Waters" or "Father of waters".
Surfacewater and Groundwater. Groundwater resources provide over 90% of Mississippi's drinking water supply, making that it's primary source of water.