Federal officials indicated that even parts of the "Law of the River," a 100-year-old legal framework that governs Colorado River allocations, could change as a result of the negotiations. “We ...

New details are emerging of what's being negotiated between the seven states who rely on the Colorado River — an "amicable divorce" between the Upper and Lower Basins.

The study found that groundwater losses in the Colorado River basin were 2.4 times greater than the amount of water lost from the surfaces of Lake Powell, Lake Mead, and a number of other smaller ...

Arizona officials present details of a new proposal to share future shortages on the Colorado River. The "supply-driven" solution would base allocations on the river's actual flows, not on storage ...

Applying a market-based approach to Colorado River management could ensure more robust and reliable supplies for farmers, communities and the environment, a new study has found. Without considerabl… ...

Discover the thrill of whitewater rafting in Colorado with our guide to the top eight river stretches, including the Animas, Cache La Poudre, Green and Yampa rivers.

Equal pain: Hobbs says Arizona will defend its Colorado River water, wants other states to accept cuts Hobbs says Upper Basin states can't 'shirk their responsibilities' Arizona Gov. Katie Hobbs ...

The Colorado River basin has lost huge volumes of groundwater over the past two decades according to a new report from researchers at Arizona State University. Researchers used data from NASA ...

Arizona officials present details of a new proposal to share future shortages on the Colorado River. The "supply-driven" solution would base allocations on the river's actual flows, not on storage ...