Now, for comparison, here's a look at Arneson's contemporary map of Blackmoor, as found in his First Fantasy CampaignTM
Here's what Mr. Megarry has to say about it.. "I have looked at the Great Kingdom map and have little to say about it. I think the numbered areas were districts within the Kingdom which had their own Duke's and such. As you can see, Blackmoor was wedged into a space between the Great Kingdom, the Duchy of Ten and the Egg of Coot. I think Arneson was trying to do a combination of Diplomacy, Braunstein and Fantasy gaming, having us take roles. But I think it was too ambitious and I was not part of it. I received the map in a poor condition with the coloring already done, possibly in anticipation of my being assigned a part, but nothing came of it. I suspect I was away in Boston.....I was living in Boston in 1974 and 1975; I moved to Lake Geneva on 22-23 Feb 1976 from Boston. I did not do much role playing during my time in Boston." (perscomm 2016-2017)
Check out Zenopus 'blog Zenopus Archives , and of course, the Secrets of Blackmoor Documentary. Zenopus in particular has done some outstanding work on the Great Kingdom maps, so I asked him to lend his expertise, and I'd encourage readers to enjoy his results.
A couple additional notes:
One of the main NPC characters in Arneson's Garbage Pits of Despair is Terrence of Walworth, so it is interested to see Walworth so prominently marked. Walworth, as has been mentioned before, was of course a territory controlled by Gary Gygax.
I'd also like to suggest that the "Contested Area" is quite possibly an early reference to what became known as The Wild Coast.
In this map, we are shown the location of the Capitol of the Egg of Coot is marked with an Asterisk. But also of note is just how big the land of the Egg is. Blackmoor is tiny by comparison.