On Colorado's Upper Arkansas River, a deal is boosting water for fish and rafting

The tribe's river water allotment largely goes to alfalfa and cotton operations, which pay for healthcare, housing and more. But as agencies negotiate over water, tribes are often left out.

To find traces of an ancient sea, paleontologists and "rock hounds" head to the desert.

Scientists have a new name for a weather pattern reshaping how the West gets its water: so-called “snow-eater” heat waves.

Friends and family are sharing what they’ll miss about Chris Andersen and Miles Elliott. Their deaths have also further shaken the wildland fire community, which has lost a number of firefighters during the intense and ongoing season.

Conservationists worry that a Trump Administration review of land management rules could threaten these wild places. Here's how to weigh in through public comment portals.

New technology streamlines a complicated and cumbersome process

Study demonstrates reduced use of alcohol and marijuana among Indigenous people

The reservoir, which straddles the Arizona-Nevada border, has suffered due to an imbalance between supply and demand for Colorado River water.

Senate Democrats say the examination undermines Congress' role in identifying wilderness areas for protection.