The federal government has issued new guidelines to wildland firefighters for the voluntary use of protective masks. The move comes as knowledge of long-term health risks faced by such workers – including cancer – grows.

Mountaineer Paul Petzoldt started the school in 1965 in Sinks Canyon and the Wind River Mountains. Since then, thousands of its students have gone on wilderness expeditions around the world.

The industry’s been largely unregulated for decades. The change came out of a bill passed by legislators this spring.

The Public Lands Rule was among the Biden Administration's signature efforts to protect and restore Bureau of Land Management land in the face of climate change and increasing land fragmentation.

Wyoming lawmakers are requesting draft legislation to ban a proven method of adding water to drought stricken landscapes after hours of testimony about cloud seeding and geoengineering.

Environment and outdoor recreation advocates say changes to the Land and Water Conservation Fund could undermine its effectiveness.

Wesley Dopkins of St. Paul, Minnesota was last seen in June 2024, paddling a foldable kayak across Jackson Lake in Grand Teton National Park.

A new approach to addressing water scarcity is underway — one that turns farmland into projects that benefit both people and the environment. Researchers say parched Mountain West states could learn from it.

The Madison and Firehole Rivers and their tributaries, and the Gibbon River downstream from Norris campground are open again to fishing from sunrise to 2 p.m.

A new scientific analysis shows that fall temperatures are rising across the country because of climate change, especially in the Mountain West. More than simply a delay in sweater weather, experts say this trend has more serious impacts.