Authorities are searching for a Wyoming man who vanished during a bike ride in the mountains, and survival experts question ...

In 1980, a band of bighorn sheep were captured from the Sun River area along the Rocky Mountain Front and moved to a foreign landscape to the east, north of Montana’s massive Fort Peck Reservoir.

Disease, drought and predators like mountain lions have all been blamed for the ... The study took samples from 388 wild ...

Disease, drought and predators like mountain lions have all been blamed for the ... The study took samples from 388 wild ...

Columnist Dennis Sun writes, "For the next couple of years, the BLM will be gathering feral horses from four herd management ...

Only one of the sheep ... Mountain Wolf Project, in an email statement Thursday, condemned the killing, calling it “a devastating act that highlights the failure of USDA Wildlife Services ...

Over the last month, two of Colorado’s latest gray wolf transplants were killed after crossing the border into Wyoming. ...

A bighorn sheep was spotted on one of Lake Louise's webcams back in the early season.

The NASA satellite image shows rust-red rock formations in Wyoming—evidence of 220-million-year-old 'megamonsoons'.