New EROS Tool Shows County-By-County Change Across United States Land Change, County By County National Land Cover Database Enhanced Visualization Tool Explore Your County Release Date: April 6, 2021 The USGS Earth Resources Observation and Science (EROS) Center has released a new online tool to help the public better visualize county-by-county land change across the United States. The National Land Cover Database (NLCD) Enhanced Visualization and Analysis (EVA) tool lets users pick any county in the U.S. and see how much change has occurred between...