BILLINGS, Mont. — Noise emissions at three key spots in Yellowstone National Park were “substantially lower” last winter, but still routinely exceeded thresholds set by the National Park Service, a ...

LANSING, Mich. The Michigan Department of Natural Resources (DNR) says they’ll be stepping up efforts this winter to make sure snowmobiles aren’t too loud. In a press statement, the DNR says their ...

WPBN/WGTU — Snowmobiling is one of the most popular winter activities in northern Michigan, but the Department of Natural Resources is cracking down on rules of the trail. While they've had noise ...

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 ...

Against the backdrop of the Keweenaw’s late winter snow, a competition to reduce snowmobile noise and fuel consumption, highlights a commitment to an environmentally-sustainable future for the sport.

Getting your Trinity Audio player ready... Recreational snowmobilers are finding white, wintry wildlands to ride through — and droning a bit less, under Colorado’s new noise limit. State and federal ...

BILLINGS (LEE) - Noise from snowmobiles at several spots in Yellowstone National Park last winter exceeded goals set by park officials. As in previous years, the loudest spots were near Old Faithful, ...

Despite conclusions from its own scientists that snowmobiles in Yellowstone National Park continue to create unacceptable noise levels, the National Park Service on Monday released a draft plan that ...

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

Under a long-term plan for winter use of Yellowstone National Park announced Monday, snowmobile noise is expected to be about the same as under a previous proposal that actually allowed 180 more ...