Major Vegetaton Classes

GNN species-size model (forest only, with nonforest mask). Vegetation class based on canopy cover, hardwood basal area proportion, and quadratic mean diameter (QMD) of all dominant trees. All Oregon maps are based on 2000-2001 Landsat imagery. Data developed by the Landscape Ecology, Modeling, Mapping and Analysis (LEMMA) team at the Pacific Northwest Research Station, USDA Forest Service.

Major Vegetation Classes