The Hudson River is the largest river in North America that flows entirely within a single country – the United States. The river begins in upstate New York and flows south for 1,894 miles before emptying into New York … See more

The Great Lakes are among the largest and most important bodies of freshwater on Earth. The five lakes— Superior, Michigan, Huron, Erie, and Ontario—together contain more than 20 percent of the world’s fresh surface wat… See more