Here are links to 2 versions of the map of the continent of the Flanaess, commonly known as the World of Greyhawk, after the continent's most famous city.

[[http://www.highprogrammer.com/alan/gaming/dnd/greyhawk/map/supermap.html]]  

[[http://hometown.aol.com/dreadwood/maps/]]  

The campaign is intended to start in the Free City of Irongate, which is located at this particular sub-map

[[http://hometown.aol.com/dreadwood/maps/map33.htm]]