The Three Patriarchs, Zion Canyon 364 Casa Grande National Monument 374 Prehistoric cave homes in the Bandelier National Monument 374 Tumacacori Mission 376 Montezuma Castle 376 Roosevelt party in Monument Valley 386 Rainbow Bridge in full perspective 386 The Petrified Forest of Arizona 396 Petrified trunk forming a bridge over a canyon 396 Cathedral Isle of the Muir Woods 406 Pinnacles National Monument 412 The Devil's Tower 412 MAPS AND DIAGRAMS PAGE Cross-section of Crater Lake showing probable outline of Mount Mazama 189 Cross-section of Crater Lake 191 Map of Hawaii National Park 230 FACING PAGE Outline of the Mesa Verde Formation 290 Outlines of the Western and Eastern Temples, Zion National Monument 356 AT END OF VOLUME Map of Yosemite National Park, California. Proposed Roosevelt National Park and the Sequoia and General Grant National Parks, California. The Rocky Mountain National Park, Colorado. Mount Rainier National Park, Washington. Crater Lake National Park, Oregon. Yellowstone National Park, Wyoming. Glacier National Park, Montana. Mesa Verde National Park, Colorado. Grand Canyon National Park, Arizona. Zion National Monument, Utah. THE BOOK OF THE NATIONAL PARKS The Book of the National Parks ON THE APPRECIATION OF SCENERY To the average educated American, scenery is a pleasing hodge-podge of mountains, valleys, plains, lakes, and rivers. To him, the glacier-hollowed valley of Yosemite, the stream-scooped abyss of the Grand Canyon, the volcanic gulf of Crater Lake, the bristling granite core of the Rockies, and the ancient ice-carved shales of Glacier National Park all are one--just scenery, magnificent, incomparable, meaningless. As a people we have been content to wonder, not to know; yet with scenery, as with all else, to know is to begin fully to enjoy. Appreciation measures enjoyment. And this brings me to my proposition, namely, that we shall not really enjoy our possession of the grandest scenery in the world until we realize that scenery is the written page of the History of Creation, and until we learn to read that page.