What is the effect of snowmobiles on aesthetic and wilderness values?
The sound level of snowmobiles is an issue with regard to aesthetics and wilderness values. For example, on some days it is difficult for most visitors to travel to an area in Yellowstone National Park where the sound of snowmobiles is not present. Other people, however, state that the sound of snowmobiles has no impact on their ability to enjoy National Parks or wilderness areas.