Hoover Dam reshaped the Colorado River and powered the Southwest. Nearby Boulder City tells the human story of the families who built the dam.

In late May, as the outside temperature approached 100 degrees, Arizona’s top water policy officials gathered in an air-conditioned Phoenix conference room. Their purpose that day was to decide ...

Vertical hydroelectric generators inside Hoover Dam are shown in January 2020. Modeling in the U.S. Bureau of Reclamation’s Draft EIS shows that declining reservoir elevations at Lake Mead reduce ...