A variant of Image:Gb4dot_merged_mapcolors.svg (itself a variant of Image:Gb4dot.svg), with the names of rivers added. The colours have been adjusted. If you see any errors or glaring omissions, feel free to revise this file and upload a new one to replace it.
Gb4dot_merged_mapcolors.svg
Gb4dot_merged_mapcolors.svg: Wereon, Ilmari Karonen
derivative work: Cavila (talk)