The U.S. Supreme Court on Thursday unanimously ruled that federal agencies aren't required to consider broader environmental ...

The ruling means the railway can move forward — at least legally. But opposition at the local level is far from over.

Arizona is home to some of the most exceptional landmarks in the United States. You’ll have plenty to explore from the ...

A controversial proposal to haul up to 350,000 barrels of waxy crude oil daily along a stretch of the Colorado River can move ...

The Colorado River State Historic Park unveiled its newest exhibit, “The Colorado River: lifeblood of the Yuma community.” The exhibit dives into a variety of themes, including the history of the ...

New research based on satellite data shows the depletion of groundwater in the Colorado River Basin far exceeds losses from the river’s reservoirs. Scientists say overpumping is leading to alarmingly ...

Some towns saw these recreational in-channel diversions, or RICDs, as a way to boost tourism dollars and spur economic ...

Colorado lawmakers have reintroduced a bill that would form a national conservation area over highly contended land in ...

As Colorado residents and visitors begin planning summer trips, transportation officials are reminding travelers that summer ...