Mixed Forest: canopy 26-75% coniferous/broadleaf trees
Broadleaf Forest: canopy >75% broadleaf trees
Transitional Forest: forest land <50% of area
Coniferous Forest: canopy >75% coniferous trees
Tundra: Treeless arctic & alpine vegetation
Sparsely Vegetated/Barren Land: plant cover gen. <25%
Perennial Snow or Ice: Perennial snow fields & glaciers
Cropland: Cultivated land
Rangeland and Pasture: Native veg. with <10% tree cover
Built-up Area: Cities and towns