Michigan's state-designated trails are open Dec. 1-March 31, and grooming occurs when there is enough snow. Trail permits for the 2021-22 snowmobile season will go on sale Sept. 1.
Please note: The trail permit will increase from $48 to $52 for the next five-year period. The change is based on a statutory requirement to adjust snowmobile trail permit fees based upon the CPI as determined by the federal Bureau of Labor Statistics.

Speed is dangerous. Speed is the No. 1 cause of serious snowmobile rider injury and death.