Colorado’s top water board unanimously agreed Tuesday to hear out Front Range water operators’ concerns about a Western Slope ...

Colorado transportation officials closed Interstate 70 west of Vail on Wednesday for several hours because of a wildfire.

Arizona is tussling with other states over how much of the Colorado River it should receive. But how will Arizonans divide ...

Deadlocked for months in tense, closed-door meetings, Colorado River states may be one step closer to an agreement.

Last year over the Fourth of July holiday period, more than 235,000 vehicles traveled through the Eisenhower/Johnson Memorial ...

The study did not measure how much water evaporation floating solar would prevent, but previous NREL research has shown that photovoltaic panels—sometimes called “floatovoltaics” when they are ...

The Southwest and Rocky Mountain states are reviewing a plan that could split Colorado River water based on actual flows, not storage.

Arizona officials present details of a new proposal to share future shortages on the Colorado River. The "supply-driven" solution would base allocations on the river's actual flows, not on storage ...

A leading Colorado River researcher says current global warming forecasts paint a grim ... In the language of water managers, it means a river that the interstate negotiators of a century ago asserted ...

The Colorado River community is now laser focused on the need to adopt new operating rules by the summer of 2026. At this important inflection point in the basin, it is useful to look back, reflect on ...

Arizona faces potentially severe cuts to its Colorado River water allocation after 2026. Deep cuts could impact tribal water settlements, major city water supplies and key industries like ...