The change in water levels ... Lakes Mead and Powell are major reservoirs of the Colorado River, formed by the Hoover Dam and Glen Canyon Dam, respectively. Lake Mead's full pool level is 1,229 ...

Federal officials have discovered damage inside Glen Canyon Dam ... works — that allow water to pass through the dam in northern Arizona when Lake Powell reaches low levels.

A rocky start to the year has put water flows through America's second-largest reservoir on track to decline, unless ...

As Lake Mead’s water level continues to ... looks to reduce the risk of Lake Powell from dropping below 3,490 feet, a level at which Glen Canyon Dam could no longer produce power.