Federal officials are quietly warning that one of the country’s most important dams is approaching a tipping point not seen ...

The next step is not optimism. It is alignment. Arizona should stop approving new growth that depends on Colorado River water ...

Across two continents, officials are confronting the same nightmare scenario: a reservoir so depleted it can no longer move ...

Don Ellis overlooked the Teton River as he watched a wall of water break through the newly-completed Teton Dam. It was 11:55 ...