The Hoover Dam is one of the largest dams in the world! It provides power and water to people in Arizona, Nevada, Utah, and California. Just how does the Hoover Dam work? And how many people did it take to build this amazing structure? Read this book to find out! Learn all about some remarkable sites in the Famous Places series - part of the Lightning Bolt Booksâą collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Booksâą bring nonfiction topics to life!