Related Clues:

• Folder's challenge?
• Travel director
• Leadfoot's nemesis
• Mall directory feature
• Echo sounder
• Diagram of roads and such
• Travel guide feature
• Gun at a ball game
• Air-traffic aid
• Atlas part
• Guidebook feature
• Treasure seeker's help
• Sub sensor
• "M*A*S*H" character with great hearing
• Cartography sample