Glyfair
Explorer
MerricB said:Tomb mentions several places in Greyhawk it could be set.
Another example of the evolution of the adventure locations. "Could be set" implies that it's not actually a Greyhawk adventure, but an adventure that can be set in Greyhawk. The World of Greyhawk Fantasy Game Setting lists a single "canon" location in Greyhawk.
The early adventures were generic in location. As Gary began working on World of Greyhawk Fantasy Game Setting suggested locations were given. Once it was published (or close to being published) most adventures were explicitly set in Greyhawk. As FR gets closer to being published Greyhawk stops being the default setting assumption.