Describes the course of the Colorado River, its impact on the land through which it flows and on the people living nearby, dams and canals used to harness the river's water, and controversies surrounding its use.
Discusses the importance of the Mississippi River, its role in the agricultural and industrial development of the United States, floods and their impact, and various threats to the river.
An overview of the Amazon River, its physical features, plants and wildlife, history, economics, towns and cities, vanishing Indians, and environmental threats.
Describes the course of the Nile River from its source in central Africa to the Mediterranean Sea and people who have explored it, civilizations it has fostered, efforts to control it, and more.