Joe Dever's Lone Wolf Console Edition

During Act 2, you will enter an area represented by a large tree on the map called Monumental Oak. The character climbs this to survey the area. In doing so 3 areas are highlighted on your map. These are Brotherhood Encampment, Abandoned Cave, and Bronin Mines. Once you have visited and completed the story segment in each of these, this trophy will unlock.

I unlocked an additional area when I visited Bronin Mines. This was not required to unlock this trophy.