With the west in extreme drought, Lake Mead, fed by the Colorado River and formed by the Hoover Dam, reached historic lows in June. The water level continues to fall, continuing a trend that began more than 20 years ago. The Federal government is expected to declare a water shortage in the lower basin of the Colorado River by 2022 at the latest, which will trigger mandatory water cuts in Arizona and Nevada. These cuts will particularly impact farmers. But they are likely to hit indigenous communities particularly hard …