Bicycles are permitted on all Michigan highways and roads, EXCEPT limited access freeways or unless otherwise posted. Bicycles are allowed on all road systems including those in State of Michigan forests, state parks, national forests, and national parks. All-terrain bicycles are suited for many of the state and national trails. Use of trails in these areas is described below.

State Forest Trails
Bicycles are allowed on most state forest trails.
Michigan Department of Natural Resources
Forest Mineral & Fire Management Division
P.O. Box 30452
Lansing, MI 48909
517-373-1275

State Park Trails
Bicycles are currently allowed on trails in 31 State of Michigan park and recreation areas. This includes the Kal-Haven and Hart-Montague Linear State Parks, which were developed especially for bicyclists. For maps of trails and further information call the individual park or the
Michigan Department of Natural Resources
Forest Mineral & Fire Management Division
517-373-9900 

National Forest Trails
Bicycles are allowed on national forest trails except where posted. Prohibited trails include the following: Nine Mile Creek - Manistee National Forest, Hoist Foot Trail and Reed Lake Trail - Huron National Forest, and portions of the North Country National Scenic Trail - Ottawa and Hiawatha National Forest. Bicycles are also prohibited in congressionally designated wilderness areas. National forest maps are available at each forest service office. For further information call the respective Forest Service.
Huron-Manistee National Forest - 1-800-821-6263
Ottawa National Forest - 906-932-1330
Hiawatha National Forest - 906-786-4062

National Park Trails
Bicycles are NOT allowed on national park trails.