The National Landcover Database (NLCD) from the United States (2001) and the Agriculture and Agri-Food Canada (AAFC) (2000), and a classified Landsat TM scene to fill the gap between the US and Canada were mosaicked together. Landsat images from June or July 2000-2002 were used to be consistent with timing of other data layers. Landcover across the layers were crosswalked and standardized into 5 classes: crop, grassland, other/non-habitat, woody vegetation and water/wetlands.
