An unusual pattern of springtime elk deaths for more than a decade in northern Nevada has scientists searching for answers. What they find could shed light on broader questions about wildlife health across the West.

A federal plan for the Colorado River means big water cuts for Arizona. The Phoenix and Tucson areas will be hit hard. City leaders say they can keep taps flowing, but solutions will be expensive.

States that share the Colorado River have been meeting behind closed doors. But as they’ve failed to forge a deal for the river’s future, more are questioning the negotiation process itself.

The federal agency's action — published Tuesday — contends that its decision is intended to "encourage energy production" in the midst of Trump's self-declared national energy emergency.

Mountain West texters are more likely to bring up self-harm in crisis conversations than Americans at large.

A U.S. representative calls for an investigation into the site that would house Open AI.

From Spokane, Wash. to Pueblo County, Colo., fast-moving fires have again wreaked havoc in neighborhoods this summer. Now, a network of scientists, fire professionals and other experts have joined forces to seek research-based solutions to the problem.

So-called process based restoration (PBR) has a number of ecological benefits. But it can make ecosystems more resilient to wildfires when they come, and better able to recover in their wake.

Giant sequoias only grow naturally in California today. But they once ranged as far east as Colorado, Wyoming and Nevada, before the climate turned drier and pushed them into their current, narrower range.

An approval for permitted outfitters to use gas-powered machines to clear trails highlights a clash between access and preservation.