From the article: "If you are interested in trying out making digital Middle Earths, here is an ArcGIS Pro style file with all the doodads you’ll need. If you d

From the article: "If you are interested in trying out making digital Middle Earths, here is an ArcGIS Pro style file with all the doodads you’ll need. If you don’t run that, then here is a zip file with all of the textures and graphics that you can use to symbolize your layers." Links are included there. I suppose Mapbox could be created from that?