Where are snowmobiles typically restricted from being driven?

Snowmobiles are typically restricted from being driven in national parks due to conservation efforts and the protection of wildlife. These areas are often designated to preserve the natural environment, and the use of motorized vehicles such as snowmobiles can disrupt habitats, disturb wildlife, and contribute to environmental degradation. National parks often have specific regulations to ensure that the natural beauty and ecological integrity are maintained, which is why access for snowmobiles is usually prohibited.