Ten of the National Wilderness Preservation System's wilderness areas are closed to access and use by the general public. Most of these closed areas are managed by the Fish and Wildlife Service. The core mission of the Service's National Wildlife Refuge System is conservation of native fish, wildlife, plants, and their habitats. , part of the , is closed to visitation to protect wildlife and other natural, cultural, and/or other resources consistent with the conservation purpose(s) of the refuge. Wilderness designation provides an additional level of protection for the wilderness portion of this refuge, but does not open the area to public access or use.
Digital and paper maps are critical tools for wilderness visitors. Online maps can help you plan and prepare for your visit ahead of time. You can also carry digital maps with you on your GPS unit or other handheld GPS device. Having a paper map with you in the backcountry, as well as solid orienteering skills, however, ensures that you can still route-find in the event that your electronic device fails.
Motorized equipment and equipment used for mechanical transport is generally prohibited in all wilderness areas.
This includes the use of motor vehicles, motorboats, motorized equipment, bicycles, hang gliders, wagons, carts, portage wheels, and the landing of aircraft including helicopters.