A journey down the Colorado reveals its origins, history, and uses. The book also discusses why the river's location has been a catalyst for arguments over water rights. Series Information: What roles do rivers play in the history, geography, culture, and economic development of a country? What environmental factors contribute to a river's health or decline? The World of Water charts a course along some of the world's most famous waterways, providing intermeidate-grade students with a cross-curriculum view of one of the Earth's life-sustaining wonders.