Arizona Rocks! tells the stories of 44 of the best geologic sites in the state. Not only will you learn about well-known places, such as Barringer Meteorite Crater and Petrified Forest National Park, but you'll also discover lesser-known sites, including Hopi Buttes, which formed from steam-driven explosions, Peridot Mesa, where gemstones from the Earth's interior are found, and Montezuma Well, a limestone sinkhole with a perennial supply of water....

The rise of mountains and the spread of deserts has marked the geologic history of Arizona. Landscapes that we see today are here because of landscapes of the past, and because of tremendous forces deep within the earth, forces that carry continents into collisions and then drag them apart again, forces of heat and pressure and the slow churning boil of the earth's interior. Landscape features result, too, from more comprehensible, more recent forces:...

Fasten your life jackets for a ride you'll never forget. Now the excitement of a raft trip through the Grand Canyon has been re-created by a seasoned whitewater guide with a passion to share one of the world's most fantastic journeys. Michael Ghiglieri, a professional river guide for more than 17 years, has written the first book to describe that trip from the modern boatman's point of view. From Lee's Ferry to Diamond Creek, Ghiglieri leads you down...