The West’s most important river has shriveled over the past quarter century — and its leading climate scientist says things ...

The Colorado River Basin has lost twice as much groundwater since 2003 as water taken out of its reservoirs, according to a study based on satellite data.

The guidelines needed to manage the Colorado River expire at the end of 2026, and now the question is — what will replace them?

Deadlocked for months in tense, closed-door meetings, Colorado River states may be one step closer to an agreement. Representatives from each of the seven Western states have agreed to discuss a ...

Nearly half the water drawn from the Colorado River goes to grow feed for beef and dairy cows. Researchers say modest changes in American diets could help the river — and the climate.

The lines in the sand haven't changed, even if warring states are working on a new deal to save the Colorado River.

This episode explores the mystery of the vanishing Colorado River Delta. Once a lifeline for the American Southwest, it's now a shadow of its former self. What happened? Outdated water laws ...

Emerald Cave, also known as Emerald Cove, shimmers with luminous green light. Here's the best time to visit Emerald Cave and how to get there.

Sporting sandals, swim shorts and baseball caps — and hopefully plenty of sunscreen — a cohort of state lawmakers hopped ...

Las Vegas and Southern Nevada’s success is directly tied to the health of Lake Mead and the Colorado River.

Colorado has unique protections for river recreation, but do they have enough legal muscle? Parks for whitewater kayaking hold a special legal status, but some river experts say it's time for Colorado ...

Heavy winds that swept through Black Canyon of the Gunnison National Park on Sunday night started “rapid fire spread” after a relatively slow day of growth, according to fire officials.