Prosecutors said the Montanan illegally used tissue from a sheep from Central Asia and the testicles from a bighorn sheep to ...

An 81-year-old Montana man faces sentencing for cloning a giant Marco Polo sheep using illegally trafficked tissue and ...

An 81-year-old Montana man was sentenced Monday to six months in federal prison for illegally using tissue and testicles from ...

An 81-year-old Montana has been sentenced to six months in federal prison and ordered to pay $24,000 in penalties for using ...

A decade-long saga involving planned workforce housing for the Vail ski resort on land inhabited by Colorado’s bighorn sheep has been resolved, with the resort agreeing to build in another part ...

Marco Polo sheep are the largest in the world, can weigh 300 pounds (136 kilograms) and have curled horns up to 5 feet (1.5 meters ... trophy-sized Rocky Mountain bighorn sheep that had been ...

Critics of a pending land exchange say a remote and rugged piece of federal land in the Laramie Range mountains is a paradise ...

Big Bend National Park will be closing remote sections of the park next month to protect native bighorn sheep.

As recently as 2019, the town council supported Vail Resorts' plan to build a 165-bed project at the edge of the sheep habitat in an area known as Booth Heights. But changes in the makeup of the ...