The Mississippi watershed is the largest drainage basin in North America with an area of 3.2 million square kilometers (1,245,000 square miles). More: Geography Facts About the Mississippi Watershed https://www.geolounge.com/geography-facts-mississippi-watershed/ Animation of the Mississippi Watershed from NASA, public domain: https://svs.gsfc.nasa.gov/4493 Music: Boardroom Theme by Unicorn Heads, CC BY 2.0