There are, of course, towns, villages, and geographic features not yet noted on the map; they'll get added as they become important.
Bread and Circuses players take note; this is where you live, too. Scandshar is right in the middle.
And yes, you grognards, one hex is six miles across. Geographic features are written in Dominican font; settlements are written in Village font (or you can download it from this The Prisoner fansite).
|Click to enlarge.|