Utah is home to five spectacular and diverse national parks. The largest, at a massive 337,570 acres, is Canyonlands, an immense wilderness of rock at the heart of the Colorado Plateau. Water and gravity have been the prime architects of this land, cutting flat layers of sedimentary rock into hundreds of colorful canyons, mesas, buttes, fins, arches and spires. At center stage are two great canyons carved by the Green and Colorado rivers that have their confluence in the heart of the park, Cataract Canyon.