A new study pinpoints the main cause of harmful algal blooms in Blue Mesa Reservoir, and includes a recommendation for a ...

The study also says maintaining a water-level elevation above 7,470 feet might help minimize the occurrence of these blooms.

As an Aspen Journalism donor, thank you for making this reporting possible! Time is ticking for states that share the shrinking Colorado River to negotiate a new set of governing rules. One major ...

From left, J.B. Hamby, chair of the Colorado River Board of California, Tom Buschatzke, Arizona Department of Water Resources; Becky Mitchell, Colorado representative to the Upper Colorado River ...

As an Aspen Journalism donor, thank you for making this reporting possible! Like a lot of his neighbors, John Sullivan looks down his Apple Tree Park street and across the Colorado River toward the ...

As an Aspen Journalism donor, thank you for making this reporting possible! As the least pricey free-market homes in once-affordable Colorado mountain towns such as Basalt and Carbondale are ...

As an Aspen Journalism donor, thank you for making this reporting possible! The seven states that share the Colorado River are floating a new concept for how water could be shared in the future, ...

As an Aspen Journalism donor, thank you for making this reporting possible! In a historic move Wednesday evening, the state water board voted unanimously to accept water rights tied to the Shoshone ...

Thank you for your support of Aspen Journalism! Your support made this work possible. Thank you. West Slope water managers say they are being cut out of the process to review and approve applications ...

Afternoon rush-hour traffic at Aspen’s roundabout as cars leave town, driving downvalley on Highway 82. Communities that are an hour or more away from Aspen by car saw the most robust population ...

This beaver dam analogue, with posts across the creek and soft, woody material woven across, was built by environmental restoration group EcoMetrics, keeps water on the landscape by mimicking beaver ...

As an Aspen Journalism donor, thank you for making this reporting possible! When looking at the Aspen-Pitkin County Housing Authority ownership inventory we recently shared, it can be surprising to ...