Take in views of Lake Mead, the Hoover Dam and the Colorado ... take you through the inspection tunnels and the generator room. Most reviewers give this tour high marks, praising the knowledgeable ...

The Historic Railroad Tunnel Trail is more than ... down a steep descent and staircase to the Hoover Dam, where you can take ...

but only the Hoover Dam Tour offers a look at the facility's inspection tunnels. If you'd like to take a power plant tour, you'll have to pay $15. Dam tours cost $30 per person and include access ...

The most dangerous phase of Hoover Dam's construction was building the diversion tunnels, two on each side of the Colorado River. Blasting holes 56 feet in diameter, three-quarters of a mile ...

People came from across the country to witness the construction of Hoover Dam. One worker's daughter compared the scene to a hill of ants. "It was just fantastic to watch... It was a monument task ...

THE completion, just announced, of the great concrete structure originally known as the Boulder Dam, but afterwards officially designated the Hoover Dam, across the Colorado River in Black Canyon ...