This raster dataset comes from the National Land Cover Database (NLCD), 2016 version. It represents land cover across the contiguous 48 states, circa 2016. Each 30-meter-square pixel has been classified using a standard land cover classification scheme, and some of these categories have been aggregated further according to procedures outlined in EPA's Report on the Environment (www.epa.gov/roe). Data were originally processed and compiled by the Multi-Resolution Land Characteristics Consortium (MRLC), a U.S. federal inter-agency group, based on Landsat satellite imagery.