Low snow totals across the Colorado River basin are threatening to shrink major reservoirs and making water managers anxious.

The Department of the Interior called seven governors to Washington to try to push the states closer to a joint plan by Feb. 14.

If you took a look at a map of Rocky Mountain snow right now you would see a lot of red. The mountains that feed the Colorado River with snowmelt are strikingly dry, with many ranges holding less than ...

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

Of all the challenges facing the Colorado River, there’s at least one that all stakeholders are working on collaboratively, not competitively — salinity. Since 1974, the seven Colorado River basin ...

With a reddish tint from sediment carried over long miles, the mighty river that carved the Grand Canyon has been known by many names. Some Indigenous peoples called it “Dirty Water.” Spanish ...