An initiative of the Center for Environmental Journalism at the University of Colorado Boulder

Four things to know about the lower Colorado River basin

Water managers from the Colorado's River Upper Basin visit the Lower Basin on a fact-finding trip.

Aspen joins water managers using new technologies to map mountain snowpack, predict streamflows

As a changing climate renders streamflow predictions less accurate, water managers are turning to new technologies for a clearer picture of what’s happening in their basin’s snowpack.

Photos: Horseshoe Bend, Arizona, December 2019

This page features photos of the Colorado River at Horseshoe Bend, near Page, Arizona. This scenic vista in Glen Canyon National Recreation Area, located just downstream from Glen Canyon...
Low water levels Aug. 18 at Dillon Reservoir expose sand rings around the lake's islands.

Dillon Reservoir water levels hold on despite statewide drought

Amid one of the hottest summers on record for Colorado, Dillon Reservoir is 94% full, nearly 5 feet below its capacity. This level of drought has been manageable this year for Denver Water partly because of the 2018-19 winter.

Photos: Parker Dam, February 2021

This page features photos of Parker Dam, located along the Colorado River on the Arizona-California border.   Built between 1934 and 1938 by the Bureau of Reclamation, Parker Dam is...

Photos: Colorado snow drought 2025-2026

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 imagery from Colorado ski areas...
Some of the snowmelt flowing in the Blue River as it joins the Colorado River photo

State officials gear up for “difficult conversations” on the Colorado River

The seven U.S. states that share Colorado River water will soon renegotiate water management guidelines.

Photos: Boulder Creek and Gross Reservoir

This page features photos of Gross Reservoir, Boulder Creek and the creek’s 2013 floods on Colorado’s Front Range. Located in Boulder County, Gross Reservoir was created as a water storage...

Calls grow for statewide water conservation standards; some cities skeptical

With a warming climate continuing to rob streams and rivers of their flows, talk in Colorado has resumed about how to limit growing water demand for residential use.

Photos: Santa Cruz River in Tucson, February 2021

This page features photos of the Santa Cruz River in Tucson, Arizona. The Santa Cruz begins in southern Arizona, dips into northern Mexico, and meets the Gila River, a...