On your Main Game Screen, you can locate the Game Map button towards the top left corner of your screen adjacent to the Chapter Progression Bar. You tap on it to enter the map.
Once you enter the Game Map you can track your overall progress within the game world. A) Green token indicates the Chapters you have successfully completed while (B) the Gold token indicates your current location and Chapter you are currently completing. C) The circle plots missing any token indicate the chapters you have yet to complete whilst (D) the Bridges & Gates show you the divides between specific geographical areas in the game world i.e. Jungle