It was intentionally not added, because it didn't seem like it would add measurably to the play. There's only a small chance that the Investigators would get into a fight with the camp, making it unlikely for the Keeper to need a full blown, detailed map. The areas are still keyed so that you can figure out, logically, how to get from point A to B.
But if you really need a map, I'll sketch you one.
_________________The lucky guy who got to write some Dungeon Crawl Classics.DCC Resource thread:
character sheets, judge tools, and the world's fastest 0-level party creator.