The Hoover Dam is more than just an enormous concrete wall. It is an engineering marvel achieved by careful planning and hard, dangerous work. Seventeen turbines inside the dam produce electricity for millions of people.
By following clues from a dream and taking photographs of endangered wilderness areas, eleven-year-old Sarah and a Native American environmentalist try to prevent the commercial development of a southwestern canyon.
Examines the facts and fictions surrounding the life and legend of Wyatt Earp. Includes a glossary, resources for further information, and color photographs.
A look at a common food chain in a North American desert, introducing the mesquite tree that starts the chain, the coyote that sits atop the chain, and various animals in between.
