Just kind of figured this out, so I am explaining the treasure maps very briefly and with my terrible explanation skills.


Once you find a treasure map, in the top right corner there will then be a red box saying 'Show Clue.' Once that's pops up, it will show you one of the four maps.

After seeing and going to which map the treasure one gave you, you will them have to compare the treasure hunting map to treasure map to find where the X is located.