Wilderness area users Wilderness areas Management Wilderness areas Protected areas Biodiversity Desolation Wilderness (Calif.) Arctic regions Economic conditions Arctic regions Environmental conditions Bob Marshall Wilderness (Mont.) Boundary Waters Canoe Area (Minn.) Hiking Nature conservation Outdoor recreation Packhorse camping Protected areas Management Public lands Recreational use Shining Rock Wilderness (N.C.) Sustainable development Wilderness areas Management Citizen participation Wilderness areas Management International cooperation Wilderness areas Protection Wilderness areas Recreational use Wildlife conservation Arctic regions Ecology Arctic regions Environmental aspects Ecosystem management Ecotourism Forest fires Environmental aspects Forest reserves Recreational use Llamas