* Glen Canyon Dam, Arizona

Glen Canyon Dam is a dam on the Colorado River at Page, Arizona, operated by the United States Bureau of Reclamation. The purpose of the dam is to provide water storage for the arid southwestern United States, and to generate electricity for the region's growing population. The dam has been controversial since its inception, because it caused the flooding of the scenic Glen Canyon and its tributaries to create a man-made reservoir, Lake Powell. WikiPedia