"Spanning the Four Corners area of the American Southwest, the Colorado Plateau is a remarkable landscape of impressive peaks, high plateaus, and deeply carved canyons. Locked in its colorful rock layers are the fossil remains of organisms that lived here millions of years ago. These rocks and their fossils tell stories of swamps and oceans, great slow-moving rivers and wind-blown sand dunes, tidal flats and tropical seas - all of which come to life as we unlock the secrets preserved in stone."--BOOK JACKET.