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

Scientists are learning more about how water moves through the Grand Canyon, and how what happens above ground affects what ...

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

Amid stalled state negotiations over how to share the Colorado River’s dwindling water supply, the Bureau of Reclamation on ...