"The Grand Canyon is in the largest canyon in the United States. The canyon and its surrounding area make up Grand Canyon National Park. Find out more in Grand Canyon, one of the titles in the National Parks series"--Back cover.
An introduction to the Grand Canyon, the largest canyon in the United States, covering geology at work, life in the Canyon, early explorers, problems of tourism, and more.
Explores the Grand Canyon and how it formed, comparing it to other canyons in the world, and how pollution is threatening the ecosystem around the Grand Canyon.
