These maps were freehanded by me; this explains some of the lettering. We could go with actual period maps instead, but most of the ones I've been using are very "busy" and might not read easily in grey tones. Also this way we leave out all the stuff that's not mentioned in the text. I had thought to put a little Elder Sign mark wherever we have a Mythos location, and either make scrawly, madman style notes on the map or just reference them in the text. (I'm reminded of the Theron Marks manual pullout in an old module I have--practical advice for investigators...)