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

West Slope water managers ask: What authority do the feds have?

Some Colorado water managers are asking what authority the federal government has in the upper basin and which water projects could be at risk.

Photos: Gila River, Arizona

This page features imagery of the Gila River in Arizona. Flowing through New Mexico and Arizona, the 649-mile Gila River is a tributary to the Colorado River, though today only...
Chimney Hollow Reservoir under construction photo

Two new Colorado River reservoirs are rising on the Front Range, are they the...

Two new water storage projects designed to capture the flows of the Colorado River may represent the end of an era on the river.

Photos: Senator Wash and Squaw Lake, February 2021

This page features photos of Senator Wash Reservoir and Squaw Lake along the Lower Colorado River. Located just above Imperial Dam on the California/Arizona border, both Senator Wash and Squaw...

Opinions differ on timeline as Crystal River Wild & Scenic efforts move ahead

Urgency to designate the Crystal River in Colorado as Wild & Scenic varies among the river's advocates.

Emergency Colorado River rescue plan likely to include more Flaming Gorge releases, payments to...

Colorado, New Mexico, Utah and Wyoming may face requests for voluntary cutbacks in their use of Colorado River water next year.
Glen Canyon Dam photo

Recent drop in Lake Powell’s storage shows how much space sediment is taking up

A new study shows that sedimentation from the Colorado River means that Lake Powell's storage capacity is lower than previously believed.

Blue Mesa is threatened by a two-decade-long drought and downstream obligations

Experts say it will take a lot more than one snowy winter to refill the reservoir. 

Photos: Fishing on the Green River

This page features fishing on the Green River in Utah. The Green River flows through Wyoming, Utah and Colorado, running 730 miles downriver before connecting with the Colorado River. About...

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...