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

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 ...

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