NPS: Arches National Park Arches National Park preserves over two thousand natural sandstone arches, including the world-famous Delicate Arch, in addition to a variety of unique geological resources and formations. 2002-09-16 Report broken link
NPS: Bryce Canyon National Park At Bryce Canyon National Park, erosion has shaped colorful Claron limestones, sandstones, and mudstones into thousands of spires, fins, pinnacles, and mazes. 2002-09-16 Report broken link
NPS: Canyonlands National Park Canyonlands National Park preserves a colorful landscape of sedimentary sandstones eroded into countless canyons, mesas and buttes by the Colorado River and its tributaries. Located in southeast Utah. 2002-09-16 Report broken link
NPS: Capitol Reef National Park The Waterpocket Fold, a 100-mile long wrinkle in the earth's crust known as a monocline, extends from nearby Thousand Lakes Mountain to the Colorado River (now Lake Powell). Capitol Reef National Park was established to protect this natural wonder. 2002-09-16 Report broken link
NPS: Zion National Park Protected within the park's 229 square miles is a dramatic landscape of sculptured canyons and soaring cliffs. Zion is located at the junction of the Colorado Plateau, Great Basin and and Mojave Desert provinces. 2002-09-16 Report broken link