and the NyrDyv is Lake Superior. Almost exactly.
Definitely, yes.
At the same time, when I compare the geographies, I read Nyr Dyv as a merging of the other nearby Great Lakes as well, along with Superior. The only Lake missing is Ontario. I imagine it being there, in some sense, not necessarily as a body of water. Even a notable river can work. As the C&C Great Kingdom map evolved into both the Greyhawk campaign and the Blackmoor campaign, what where originally minimalist sketches of rivers, were rendered as significant water bodies in later maps.
Except by latitude. Superior is north of Minneapolis, Minneapolis is at the 45° latitude as is Dorakaa. Nyr Dyv is quite south from Dorakaa.
Think of putting Superior between Chicago and Nashville for Nyr Dyv’s climate.
At the time, they were modeling reallife maps, mostly to have a map that felt "realistic" and "plausible". Even their sketches were looking at actual atlases. Albeit, there were many distortions.
Like the 1996 Oerth map has an East Oerik that has its coast roughly follow the coastline from Poland all the way to Spain ... except France is around the size of the continent of Australia.
Now that I have a clearer idea of where the latitudes are, and what the plausible weather patterns are, it is difficult to reconcile some of the D&D narratives.
Not sure about the collectability of these things. I'm not sure the 1e DMG is really all that collectable. They are relatively cheap online. But I agree the map is really nice.
Heh, I meant the map will be collectible. Players chew thru maps. The good maps get much love and nostalgia. And the 2024 Greyhawk map is beautiful in its own right. A couple decades from now, a mint map will be valuable.