Hiking and biking are wonderful ways to see the refuge. Unless otherwise stated, all refuge roads are open to bikers and hikers. The refuge manager may close some areas during peak bird migration, due to maintenance or management activities or safety concerns such as high winds, wildfire or prescribed burns. Check at the visitor center or watch the roads for closure signs. The Pine Ridge Nature Trail and the cross-country ski trails are not open to bicycles. Refuge staff members drive through the backcountry while conducting surveys so please be aware of the possibility of vehicles on the roads. To help you plan your visit, mileage is marked on the map in the general refuge brochure.