Issues

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.

This page in our free multimedia library features aerial photos of the snowpack in the San Juan Mountains of southwest Colorado. The San Juans are mostly located in southwest Colorado...

This page features aerial imagery of the White River in northwest Colorado and northeast Utah. The White River is a tributary of the Green River, which is the Colorado River’s...

Managing how water moves from one side of the Continental Divide to the other requires cautious timing and accurate forecasting.

Cities in New Mexico and Colorado are juggling water scarcity concerns over the Rio Grande.

Diane Mitsch Bush, the Democratic candidate for Colorado’s 3rd Congressional District, pledged cooperation and Lauren Boebert, her Republican challenger, promised to fight — the Front Range, neighboring states and the federal government — to protect Western Slope water.

Colorado Stone Quarries must rehabilitate streams they illegally diverted in 2018, but some say even more needs to be done.

This page features photos of Blue Mesa Reservoir, along the Gunnison River in Colorado's Curecanti National Recreation Area. Created by 390-foot Blue Mesa Dam, the reservoir has a capacity of 829,500 acre-feet, making it...

This page features photos of the Central Arizona Project (CAP) canal, a cornerstone of Arizona's water supply. Created in 1968 by the Colorado River Basin Project Act, the CAP is...

As its trial date in water court approaches, hundreds of pages of depositions obtained by Aspen Journalism reveal state engineers’ sticking points regarding a proposed reservoir project they oppose in northwest Colorado.