A description of the six main habitats that occurred along the Colville River sampling transect: 1) wet sedge meadow tundra, 2) tussock tundra, 3) shrub-tussock tundra, 4) low willow shrub, 5) tall willow shrub, 6) tall alder-willow shrub. These habitats were described in accordance with The Alaska Vegetation Classification (Viereck et al. 1992).