Lake Mead, the Nation’s Largest Reservoir, Is Smaller Than Ever

Water levels in the reservoir, which sits behind the Hoover Dam, are at record lows. A continued drop would imperil water supplies for millions of people and cut electricity from the dam.

Water levels in the reservoir, which sits behind the Hoover Dam, are at record lows. A continued drop would imperil water supplies for millions of people and cut electricity from the dam.