GEPlot is a Windows application for plotting contour lines and grids in Google Earth. With GEPlot you can plot your geographical data both over a small domain and over the whole world. GEPlot produces KML and KMZ files that can be loaded in Google Earth. The input can be ASCII (X,Y,Z format or Golden Software Surfer GRD format) files or Microsoft Excel files organised as X,Y,Z columns. GEPlot allows to produce grid and contour plots for any georeferenced variable, such as, for example, orography, land use, air pollution levels, noise levels, population data, etc.