Geography

The snowpack that 40 million people rely on for water was supposed to provide a bounty this year. Instead, much of it melted away fast and early — part of a long-term trend associated with climate change.

Should Colorado River water be used to grow alfalfa or subdivisions in the Phoenix metropolitan area?

At the heart of a potential program is a reduction in water use in an attempt to send up to 500,000 acre-feet downstream to Lake Powell to bolster thereservoir and meet 1922 Colorado River Compact obligations.

Dust suppression and habitat restoration are key elements in a plan to aid the Salton Sea, whose ills have been a sore point in Colorado River management.

The vast majority of comments received by the agency opposed the proposed dam and reservoir in Western Colorado.

This page features photos of Navajo Generating Station, a large coal-fired power plant near Page, Arizona that was decommissioned in 2019. The power plant was built, in part, to...

This page features photos of the Colorado River and Paria River at Lees Ferry, as well as nearby Navajo Bridge and Marble Canyon in Northern Arizona. Lees Ferry marks the...

Forty years after the Holy Cross Wilderness Area was created, an effort to explore tapping its water has generated more than 500 public comments.

Colorado water quality regulators’ attempt to fast-track new rules shielding streams left unprotected by changes to the Clean Water Act was abandoned earlier this month after it failed to win support from lawmakers.

Some water experts say preserving these pre-compact water rights, even though they aren’t being used, could give Colorado stronger footing in potential negotiations with Lower Basin states by propping up Colorado’s consumptive-use tally on paper.