From the Grand Canyon to the Gulf Coast, the Southwest contains some of the most striking geography in the United States.A True Book: U.S Regions series allows readers to experience what makes each of America's regions distinctive and exceptional. Readers will get to know each regions' history, geography, wildlife and future outlook. This series includes an age appropriate (grades 3-5) introduction to curriculum-relevant subjects and a robust resource section that encourages independent study.Readers will learn about the histories, landforms, and cultures of Arizona, New Mexico, Texas, and Oklahoma. They will also discover how these four states contribute to the nation's economy.