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

When Adrian Herder saw the plans for proposed hydropower project on the Navajo Nation’s Black Mesa, he was shocked by the “outrageous” 450,000 acre-feet of water the project would reportedly use.

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