Presents an introduction to the Mississippi River, the largest river in North America, showing where it is, discussing its role in the water cycle, tracing the geologic and cultural history of the river, and looking at life along the Mississippi.

The mighty Mississippi -- Where in the world? -- A trip back in time -- Water at work -- Life along the river -- Early explorers -- The big picture -- People of the river -- River stories -- Natural attractions -- Key issues: controlling the flow -- Time line-- What have you learned?.