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The head of the Colorado River District says any funding must be channeled through the Colorado Water Conservation Board to prevent speculation by private buyers.

For more than 4½ years, state engineers in Colorado have expressed concerns that a conservancy district has not proven there is a need for the water, which would be stored in the proposed White River reservoir and dam project.

Pitkin County is warming, the number of frost-free days is increasing and snowpack is declining—all of which have myriad impacts on life in the Aspen area.

This year, the first-ever Colorado River Drought Contingency Plan is set to launch, and water officials expect 2020 to bring unprecedented changes to the way the river is run, including cutbacks in water use by some states.

As Aspen evolved from a bucolic high-mountain meadow to an industrial city, pollution began to flow directly into the Roaring Fork River and its tributaries.

After a year of anxious waiting, scientists and researchers who’ve helped build one of the most successful species recovery programs in the nation have gotten a 13-year extension to finish their work.

Refrigerator filters are an attractive target for counterfeiters, who may also be putting consumers at risk by selling filters that are not merely ineffective, but unsafe.

Scientists fear that eventually the toxic residue of more than a century of agricultural runoff will be blown into the air — and into the lungs of residents.

Farmers, large and small, are beginning to grapple with what the state’s first major groundwater regulation means for them.

With talks looming on a new operating agreement for the river, a debate has emerged over the best approach to address its challenges.