States signed the Colorado River compact in 1922 to stave off water conflicts. It created the Upper Basin states (Colorado, ...

Upper Colorado River Basin states will have to accept cuts in their water use to make a seven-state deal work, says an ...

The Ranegras Plain Groundwater Basin covers a rural stretch of desert in central La Paz and northern Yuma counties. It ...

It’s easy to weigh in from the sidelines,” a legal observer says. “But I think what’s not being talked about is the real lives that are going to be implicated — ...

Wyoming and six other Colorado River basin states missed a key deadline to agree on water use, but talks continue. They now ...

Colorado River states missed a deadline. Now what? Some environmental groups are expressing their disappointment that the seven Colorado River Basin states failed this week to reach a consensus on ...

While most people think of the Amazon when discussing tropical rainforests, there's another colossal green giant quietly ...

As usual, A-Bay was one of the first two ski resorts to open this year, tying Loveland in the race to crank up the chairlifts on October 29. Only a few runs are open at the moment, but that will ...

The 1980 Groundwater Management Act established Arizona’s first four AMAs — Phoenix, Prescott, Tucson and Pinal.