Since BoneTown has a dedicated cult following, the best information is often found in community-run wikis and forums.
Note: If you are playing the family-friendly point-and-click adventure game instead of the adult action title, you are looking for "Willy Morgan and the Curse of Bone Town". In that case, visual map pieces are found as physical puzzle items in-game rather than world maps. or are you stuck on a particular mission in the game? bonetown walkthrough maps link