Levels of cyanotoxins that were on the "high end of safe exposure levels" were observed at the mouth of Antelope Canyon in Lake Powell.

Toxic algae hits vast US lake just in time to spoil July 4 swimming and boating - Exposure to the blooms can result in liver ...

For many people in the American West, at least some of their power comes from the Glen Canyon Dam, which sits on the Utah-Arizona border and forms Lake Powell.

That means Lake Mead will get 7 million acre-feet from Powell in the water year 2021-22, which ends Sept. 30, 2022 — the lowest release from Powell in many years. But at least for the rest of ...

The Juniper Fire was burning in the Bradshaw Mountains near Black Canyon City in Yavapai County after starting up July 2, ...

Update, Saturday, 7:48 p.m. • New information on damage from the Forsyth Fire, and about the France Canyon Fire. With high temperatures and strong winds across southern Utah, wildfires continue ...

Then came Jean Robert Babilis, a 70-year-old with a handgun in the console, pushing a 114-horsepower Polaris side-by-side ...

California and six other states that use water from the Colorado River are nearing a 2026 deadline to come up with new rules for sharing shrinking supplies.

The France Canyon Fire near Bryce Canyon National Park has reached 32,500 acres by Saturday, and maps provided by the U.S.

A top Interior Department official told negotiators they must have a plan by Nov. 11 or face the federal government taking ...

A scheduled power outage is planned for parts of southern Utah while firefighters continue to battle a wildfire burning ...