Geography

Extraterrestrial particles offer insights into Earth’s mountain water towers

A majority of Colorado voters believe the state should spend more money to protect its water resources, but they’re not willing to support new state taxes to fund the work.

Picuris Pueblo says its water has been stolen and shunted over a mountain to the Mora Valley — where irrigators claim rights to it, too.

With population growth around Denver prompting fierce competition for water, investors want to import a new supply from the San Luis Valley, but many farmers and ranchers who depend on that water are opposed to the plan.

Ouray County is asking the state water board to delay a court filing designed to protect streamflows and resolve issues in a related case.

The water once used to cool coal-fired power plants could soon be available for other uses, even to help fill a new drought-protection pool in Lake Powell.

Tree rings can tell a story. Wide bands signal a wet period, while narrow ones show a drought. Whole ecosystems can be encoded in...

A nonprofit trust is in the middle of a five-phase campaign to purchase and protect Sopori Creek and Farm and its larger watershed and habitat.

New Mexico is behind in water inspections for the third year in a row, leaving water quality in question.

This page features aerial photos of Arizona's Granite Reef Diversion Dam, along the Salt River near Mesa. Completed in 1908, the dam is only 29 feet high but...