The table above has links to various tutorials and resources which can help in the creation of Wikipedia maps from digital georeferenced data (GIS).
Layers: ➊. NASA topographic data ; ➋. NaturalEarth political divisions and watersways ; ➌. OSM roads and urban areas ; ➍. Shaded relief (processed) ; ➎. Specific projection.
➏a. Inkscape compilation. ➏b. Semantics: legends, icons, scale, north arrow, localizator, topographic legend are drag&drop added using Inkscape, then edited. ➏c. Thematic additions.