High Quality Content by WIKIPEDIA articles! The Glen Canyon Dam is a dam on the Colorado River at Page, Arizona, USA. It provides water storage for the arid southwestern United States, to generate electricity for the region's growing population, and to provide water recreation opportunities. The dam generates an average of 451 megawatts, 6% of the total electricity generated in Arizona and 13% of that generated in Utah where most of Lake Powell resides, which amounts to a total carbon dioxide savings of over 5 million metric tons, although it has a maximum capacity of 1300 megawatts. Damming the river flooded Glen Canyon and created a large reservoir called Lake Powell. Just downstream from the dam is an arch bridge that carries U.S. Route 89. Also nearby is the 2280 megawatt, coal-fired Navajo Generating Station. Despite continuing opposition from many environmental groups, the dam, Lake Powell, and the Glen Canyon National Recreation Area remain popular tourist destinations.