Recent snowstorms in the Colorado Rockies have helped elevate snowpack levels as the calendar turns to spring. About two ...

California’s snowpack is now 85% of average, with more snow in the northern Sierra and less in the south. Amid warming winters, the state is seeing less snow at lower elevations.

SACRAMENTO, APRIL 2 — AP — Ratification of the six-state Colorado River treaty was completed by California today, with the reservation that this state’s approval shall be binding only when Congress ...

During the late 19th and early 20th centuries, camels wandered the Sonoran Desert. How they got there, and what happened to ...

Climate change and “unsustainable human activities” are driving “unprecedented changes” to mountains and glaciers, a UN report warns.

Copper retains much of the luster that lent Arizona the unofficial nickname "Copper State," and is king in rural Greenlee County.

The current snowpack map tells the story in vivid color. Across Arizona, New Mexico, southern Utah, southern Colorado, and ...

The government-corporate cancer complex is not an anomaly; it is the inevitable result of a system that prioritizes profit over people, power over health, and cover-up over accountability.

California and Nevada — are about a third full and rely on snowmelt from the river basin upstream to be replenished. The amount of snow in the Upper Colorado River Basin generally peaks in early ...

Representatives of California, Arizona and Nevada are urging the Trump administration to take a different approach in confronting the problems of the water-starved Colorado River. As Trump’s ...