* Expanded to include Grand Staircase/Escalante, Vermilion Cliffs, Canyons of the Ancients, Dinosaur, and Hovenweep National Monuments * Color photo insert * Many sights accessible by car From the sheer-walled magnificence of Zion to the breathtaking intricacy of Bryce Canyon's sculptured turrets; from the "Grand Staircase" of the Vermilion Cliffs, and Pink Cliffs in southern Utah to the volcanic lavas of Sunset Crater: two geologists describe the star attractions of 24 national parks and monuments. New sidebars provide closer looks at specific details such as the large numbers of dinosaur footprints in and around Arches National Park and geology's profound effect on ancient Pueblo peoples and how they lived. Geologist Halka Chronic is the author of several books on geology. Geologist Lucy Chronic has served as a park interpreter at Bandelier National Monument in Los Alamos, New Mexico. Grand Staircase, Escalante, Vermilion Cliffs, Canyons of the Ancients, Dinosaur, Hovenweep National Monuments, Zion, Bryce Canyon, Grand Staircase of the Vermilion Cliffs, Pink Cliffs in southern Utah, volcanic lavas of Sunset Crater, geologists, dinosaur footprints in and around Arches National Park