First published in 1917, this book provides a detailed scientific account of the geology of the Grand Canyon, as well as a popular history of its discovery and exploration. The book is illustrated with photographs and drawings, and provides a comprehensive overview of the formation and structure of the canyon. This book is a must-read for anyone interested in the geology of the American West.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.