Colorado State University engineering students are testing dam safety on a large model of the soon-to-be-built dam at Halligan Reservoir.

Is cloud seeding safe? Jonathan Jennings explains the science behind the technology in Colorado, Utah and Wyoming.

States that use Colorado River water need to agree on new rules for sharing it by 2026. If they don't, they will likely end up in messy court battles.

Colorado River states appear to be coalescing around the early makings of a new plan to share water in a way that accounts for climate change.

Cooke is the former manager of the Central Arizona Project. The region's water experts regard him as a qualified expert.

Water experts gathered at the University of Colorado, Boulder for talks about the future of the Colorado River. Top policymakers were notably absent.

Researchers found massive depletion of the region's groundwater, adding more stress to the drought-stricken Colorado River.

Parks for whitewater kayaking hold a special legal status, but some river experts say it's time for Colorado's water law to evolve.

The Northern Integrated Supply Project, or NISP, is close to construction, but building costs are in the billions and some towns are cutting back on the share of water they'll store in its reservoirs.

Top water negotiators declined to speak at an upcoming conference amid closed-door meetings about the future of the water supply for 40 million people.