Alternative map of Magalan, created from the map pieces which you can find in the game. In total there are 16 pieces of the map scattered all over the world of the game. Collecting all pieces of the map and putting them together is an objective of "An Old Map" mission.
The following legend of Map Pieces interactive game map defines the points of interest / markers displayed on the map. Each marker corresponds to a specific element to facilitate efficient navigation and interaction with the map.
Here is the list of all sixteen map pieces which you have to collected to put the whole map together:
Full list - Map Pieces.
Direct links to each of the map pieces.