The treasure is on a secret island which is revealed after you find all pieces of the map, called Skullduggery. But I don't know how to get it yet.
There is a dock at the bottom side of the small island, Skullduggery. The island appears when you have collected all 5 of the pieces of the Treasure Map.
The 5 pieces of the treasure map reveal another small island (Skullduggery) where a secret treasure is buried. Once you get rid of Captain Crawfish, it will be safe for the villagers to recover it, and the Governor will send you to dig it up.
It is on the 6th outlying island (Skullduggery) which only appears when you have assembled the 5 pieces of the map. Once you have the map, and have defeated Captain Crawfish in battle, the Governor will give you the Treasure Location card and a bone shovel. Then you can dig up the treasure on the mysterious island.
Once you have all five pieces of the Treasure Map, the 6th island, Skullduggery, appears on the map. When you acquire a powerful ship, and scare off Captain Crawfish, the Governor will give you the Treasure location and a bone shovel to dig it up. (see related question)
If you ment counterfeit when you said confederate, there IS NO treasure map there. There IS one on SKULLDUGGERY island
when you have all the pieces of the map put them together and it will show you the hidden island then you have to go get a shovel to dig up the treasure with i haven't found yet
You can't find the treasure until you have the location from the Governor at Fort Ridley. When you have beaten Captain Crawfish, and have all five pieces of the map, see the governor to get the location card and the Bone Shovel. Return to Skullduggery Island to dig up the treasure.
there is actually pieces of the map that you get on the ports but there is a puzzle you have to do to get them
The small island (Skullduggery Island) appears once you have all of the map pieces, and view them together. However, you can't do anything there until you have beaten Captain Crawfish. Once you have, see the governor to get the location of the treasure. You can then travel to the island to dig it up.
He doesn't need to see the map. He knows where the treasure is buried. Once you recover the 5 map pieces, revealing the small island Skullduggery, you still have to earn enough doubloons to buy the Phoenix Warbird, and hire the Shipwright and Cannoneer. Only when you have defeated Captain Crawfish will the governor give you the directions to the buried treasure.
Once you have all 5 map pieces, the new island (Skullduggery) appears near the Pirate Outpost. But there is nothing you can do there until you acquire a Phoenix Warbird and defeat Captain Crawfish in battle. Once that is done, return to the governor in Fort Ridley and he will give you the map to the treasure on Skullduggery, and a shovel to dig it up.