The potential collapse of the Colorado River system poses a direct threat to water supply for millions, yet growth continues ...

Leaders of the system which brings Colorado River water to Phoenix and Tucson say cutbacks outlined in federal plans would harm the area.

With another federal deadline only weeks away and record-low snowfall further drying out the watershed, states have begun talking about whether they are prepared for litigation.

Arizona officials pessimistic about Colorado River water negotiations as Feb. 14 deadline nears amid basin disputes ...

Arizona Governor Katie Hobbs and state water official head to Washington to argue for fair cuts in Colorado River supply amidst negotiations.

Arizona and Colorado officials are building war chests for possible future litigation over Colorado River water rights even ...

Gov. Katie Hobbs heads to Washington on Friday to make her case to a top Trump administration official and other governors ...

Mesa is nearing completion of its $210 million Central Mesa Reuse Pipeline. Here's what to know about how it will affect the city's water supply.

Add Yahoo as a preferred source to see more of our stories on Google. Tribal representatives speak on panel during 2025 Colorado River Water Users Association. (Left to Right) Jenny Dumas, water ...

Colorado River water is being given away or sold at rock-bottom wholesale prices to water districts serving farms and cities across the Southwest, creating a major disincentive to conservation as the ...

Tribes across the West have worked with states to protect the Colorado River and conserve enough water to raise elevations in the river’s two largest reservoirs, Lakes Powell and Mead, a move that has ...