At 710ft tall, Glen Canyon Dam is the nation’s second-highest concrete arch dam – Hoover Dam is only 16ft taller. Construction lasted from 1956 through 1964. From April through October, 45-minute guided tours depart from the Carl Hayden Visitor Center and descend deep inside the dam in elevators. Exhibits tell the story of the dam’s construction, complete with all kinds of astounding technical facts. Three different videos spotlight various aspects of the region.
