The treasure maps section of the HUD in Assassin's Creed IV Black Flag.
Selecting this option will highlight nearby treasures as marked on a map.
See also:
Assassin's Creed IV: Cape Bonavista Treasure Map
Assassin's Creed IV: Abaco Island Treasure Map
Assassin's Creed IV: Havana Treasure Map
Assassin's Creed IV: Mariguana Island Treasure Map
Assassin's Creed IV: Andreas Island Treasure Map
Assassin's Creed IV: Great Inagua Treasure Map
Treasure Map Tool
Access the Treasure Map Tool!