Geography

Q&A with hydrologist Adrienne Marshall on why this past winter’s snowpack fell so low, how global warming increased the odds and what the future may hold

Colorado water officials hope to combat algae blooms caused by rising temperatures and an increased use of phosphorus-laced lawn fertilizers.

Environment and recreation projects represented the largest slice of the pie at $6.6 million.

This page in our free multimedia library features photos of the low snowpack in Colorado's Rocky Mountains during the 2025-2026 snow drought. This collection includes...

This page features photos of Flaming Gorge Reservoir, which impounds the Green River in Wyoming and Utah. The Green River is the most significant...

Two thick, orange, bound books sit on a library table at Colorado State University. “This is the original compilation,” said Patty Rettig, a water resources...

The cities of Aurora and Colorado Springs are looking to develop additional water in Eagle County and divert it to Colorado's Front Range.

Infrastructure built more than a century ago still endures, but some of Colorado’s old irrigation ditches have been repurposed to meet the moment. The High Line Canal—a 71-mile-long former irrigation conveyance turned greenway and stormwater filtration tool—winds its way through the Denver metro area as an artery of infrastructure boasting a story of adaptation.

As California’s seasons become warmer and drier, state officials are pondering whether the water rights permitting system needs revising.

New Mexico faces tough choices as a dire and historic drought continues and the Rio Grande is unable to give everyone what they want or need.