New administration could erase any progress in water dispute between California and other Western states over the river.

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 ...

The seven states that rely on water from the shrinking Colorado River are unlikely to agree to voluntarily make deep reductions in their water use, negotiators say, which would force the federal ...

Arizona is gearing up for a potential legal showdown to safeguard its water rights amid growing tensions over the Colorado ...

In 1928, the Metropolitan Water District was formed for the express purpose of building the Colorado River Aqueduct and transporting the water to the city. March 12 of that same year, the St ...

Snowpack in the upper Colorado River basin is slightly less than normal for this time of year, meaning Arizona could see sustained water cuts through 2026. Though trends could change through the ...

The missive, led by Arizona Democratic Sen. Mark Kelly and Utah Republican Sen. Mike Lee, the new chair of the Energy and ...

As of Thursday, the entirety of the Upper Colorado River Basin sat at 95 percent of a historical median, according to the U.S. Department of Agriculture’s Natural Resources Conservation Service.