California, Arizona and Nevada are urging the Trump administration to change course on the Colorado River. The states are ...

In a blistering letter, water officials in Arizona, California and Nevada recently took the federal government to task for failing to plan adequate measures to protect crucial ...

Everything to know about seeing Hoover Dam, including the security checkpoint, whether there's a lot of walking and how to get dam-tour tickets.

A year shy of its 90th anniversary, experts still marvel at the construction of the Hoover Dam, one of the most visited sites ...

Hoover Dam, on the border of Nevada and Arizona, offers tours and scenic views. Visitors can choose between two guided tours: the Power Plant Tour and the Dam Tour. Tours often sell out ...

The U.S. Army Corps of Engineers South Pacific Division’s Dam Safety Production Center conducted a multi-district dam safety ...

They showed up on the official seal before statehood, but not even Arizona's state historian can pinpoint the beginnings of ...

In a letter sent to Interior Secretary Doug Burgum last month and obtained by the Las Vegas Review-Journal, the three negotiators who represent Nevada, California and Arizona expressed their ...

The contracts in the Lower Basin states — those downstream of Glen Canyon Dam — totaled nearly $664 million. Mohave Valley Irrigation District in northwestern Arizona signed on to save ...