Zion National Park
The walls of Zion Canyon soar more than 2,000 feet above the valley below, but it's the character, not the size, of the sandstone forms that defines the park's splendor. Throughout the park stratigraphic evidence points to the distant past, with fantastically colored bands of limestone, sandstone, and lava. Stripes and spots of greenery high in the cliff walls create a "hanging garden" effect, and invariably indicate the presence of a water seepage or spring. Erosion has left behind a collection of domes, fins, and blocky massifs bearing the names and likenesses of cathedrals and temples, prophets and angels.