In winter the trails are open to those who enjoy sledding, snowboarding skiing, and snowmobiling activities. There are other activities that could be performed on other places besides the trails such as cross-country, snowshoeing, and ice fishing.
http://www.michigantrails.us/newaygo-county-michigan/newaygo-county-michigan-trails.html
http://newaygocounty.com/page/Motorsports
2011 Visitors Guide
