This is not a feature of Enterprise Guide (EG) technically, but of SAS, which will work in EG. PROC GMAP is one of the tools you will use. On this page I saw a map of South America, it could be the type of map you are looking for. There's a lot of flexibility in the representation of data displayed in a map made through SAS, so if you need more help, you can offer more specifics to the board about the map you are envisioning to get help.