The Champlain-Adirondack Biosphere Reserve straddles the border of north-central New York and northwestern Vermont. Lake Champlain, the sixth largest lake in the United States, and the Adirondack and Green Mountains are the central features of the biosphere reserve. It includes extensive temperate coniferous and deciduous forests as well as large numbers of lakes, bogs, and freshwater wetlands. The primary goal of the Champlain-Adirondack Biosphere Reserve is to use education, research, and demonstration projects to encourage social and economic vitality and to preserve and improve the environmental health of the region.