WASHINGTON -- The snowmobile industry says it is making headway in its effort to overturn a pending ban on snowmobiles in Yellowstone and Grand Teton national parks. The National Park Service unveiled ...

CODY, Wyo. ” Many snowmobile models recently approved for use in Yellowstone National and Grand Teton national parks approach the limits set for noise and carbon monoxide emissions. The National Park ...

CHEYENNE, Wyo. – Yellowstone and Grand Teton national parks scrambled Wednesday to put in place temporary rules for snowmobile use this season to comply with the latest ruling from a federal judge.

A federal judge struck down a ban on snowmobiles in Yellowstone and Grand Teton national parks Friday, calling it a “prejudged, political” move. Subscribe to read this story ad-free Get unlimited ...

JACKSON, Wyo. - Snowmobile emissions in Yellowstone and Grand Teton national parks will have to conform to stricter regulations than those recently approved by the Environmental Protection Agency. "We ...

WASHINGTON -- The Bush administration agreed yesterday to reconsider, and possibly scrap, a Clinton-era ban on snowmobiles in some of the nation's oldest national parks. The decision settled a lawsuit ...