HOLA: Just a gentle reminder, most maps or documents were designed to lead the originator, or a trusted ally, back to a certain spot, not the general public if it was lost or stolen.
The Jesuits were famous for making meticulous maps, but neglecting to show where they were started from, hence many are useless even though they are accurate.
It is rather like my telling you that at a certain street corner you are to go so many houses down on the left side of the street to where you will see a particular plant, from there you will cross the street and continue down to the next corner, turn right, then left to reach the house.
But I have neglected to tell you from which town or village in the world to start your search, nor even where to start in that particular area.
Don Jose de La Mancha