You will need to find "clues" for this trophy as you complete the game, this will pop during Chapter 9 if you have found all the things needed by then.
Look out for Charcoal rubbings, collectibles and also photo points as you play.
The following items are needed for this :
Chapter 1:
Survey Compass
Peligro
Survey GPS
Chapter 2:
Abandoned Truck
The Road
Tree Poison
Glow in the Dark Mining
Land Deed
Sextant
Equipment
Chapter 9:
IOA Survey Map (Photo)