A picture shows Hoover Dam overflowing in 1983, when it reached its highest water level. Bob Riha Jr/Getty Glennon said there are videos still circulating of the workers creating Hoover Dam.

The Hoover Dam is the most visited in the world, but it is far more than just a tourist attraction and remains vital to the surrounding region.

In July 1983, Lake Mead was nearing full capacity. As a result, in a rare move, the Hoover Dam opened its spillways, creating a show that visitors will never forget.

The dam was built along the Colorado River during the Great Depression and provided not only flood control, crop irrigation, and hydroelectric power for the southwestern states, but also jobs for ...

Hoover Dam has helped store Colorado River water since 1935, but reservoir levels are nearing the lowest point since Lake Mead was filled.

The effects of drought and climate change are seen at Hoover Dam, which will soon hold the smallest amount of water since it was filled in the 1930s.

The Hoover Dam Hydroelectric Power Plant in Boulder City, Nev., has been cited by OSHA following a comprehensive investigation by the occupational safety and health agency.