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

More than $100 million awarded to the Gila River Indian Community is among the conservation funds totalling hundreds of ...

Horseshoe Bend, Glen Canyon, Lake Powell, Page My Arizona adventure continued up north – starting from Tucson, through Sedona ...

The Rocky Mountain states say they don't have water to give. The Southwest says it can't save the Colorado River on its own.

Since 1974, the seven Colorado River basin states — Arizona, California, Colorado ... flow to the river,” Kanzer said of the Paradox project. “They treat it a little bit, and then they inject it into ...

Colorado River conservation programs have stopped receiving money from the federal government despite temporary restraining ...

States that use the Colorado River say they don't want to go to the Supreme Court, but some are quietly preparing for ...

(Photo by Andy Cross/The Denver Post) Colorado Rockies grounds keeper Andrew Herrera sprays water on infield during spring training at Salt River Fields at Talking Stick in Scottsdale, Arizona ...

Salt River Project hydrologists usually traipse into the high country to measure snow this time of year. The problem is, there isn't any.

“It looks like hydrology is calling us to action,” Colorado’s river commissioner, Becky Mitchell, told colleagues. While the Lower Basin states of Arizona ... they have little more to ...