Near the crashed ship, at the right side of the area from Ford's entry point, there is an alley with a big hole at the end that leads directly to a stair (not to be confused with the similar oposite side, the correct one has the stair aligned with the wall with the hole). Going up the stair leads directly to a floor, the map can be found at the end of the stair.
Data Log DescriptionEdit
This ancient map shows details of South America, Africa and Europe in detail comparable to modern maps. The disturbing part is the coastline of Antartica free of ice, accurate to Air Force radar imaging from the 1960s.