Federal contract wranglers plan to round up 4,300 wild horses in southwest Wyoming — permanently removing about 70% of them — starting Thursday in an undertaking that culminates years of conflicts among land and wildlife managers, ranchers and...

As Lake Powell dropped to its lowest-ever level Friday — a decline that has forced dam tenders to unexpectedly release 125,000 acre-feet of water from Flaming Gorge Reservoir — Wyoming stood behind five projects that could divert tens of...

Hunters shot at least 874 greater sage grouse hens in Wyoming last year, prompting a state grouse team member to question the wisdom of allowing a hunt of the imperiled species. The state’s Sage Grouse Implementation Team meets Wednesday to...

Western Wyoming emerged as a stronghold for greater sage grouse in a grim federal report that estimates an 81% decline in the species over the last 53 years. The 260-page U.S. Geological Survey report published March 30 estimates a 3% annual decline...

The giant Boise-based agribusiness J.R. Simplot Company has agreed to pay $775,000 to resolve allegations it violated federal waste and community-protection laws at its phosphoric acid and fertilizer plant outside Rock Springs. Simplot representative...

After it fired an employee who saved ducks from oilfield ponds near Rock Springs, Dominion Energy said it will strive to “better protect” animals that run perilously afoul of its facilities. Dominion will work with wildlife officials to...

Dominion Energy fired an oilfield worker in Rock Springs after the employee saved an estimated 50 waterfowl from wastewater ponds. Adam Roich said he’s rescued about that many waterfowl in the last five years after they landed in tainted ponds at h... Full story

In some 50 years of working as a sage grouse scientist, Clait Braun has seen it all. He’s witnessed the adoption of conservation plans, their subsequent dilution, the loss and degradation of sage grouse habitat, the waxing and waning of...