that 'gap' gave me some space to really see that, what belongs to Japan should be return back to Japan. if these maps have something to do with the Japanese people, then, let it be.....
most of it is really hard to read because there's so little contrast. I see a few names and places in katakana, and 注意しなければなりません. Looks like a 2nd grader made a treasure map...
石近 can be a (quite rare) family name, given name or place name, reading "Ishichika". Although I strongly believe it must be a typo or poorly-written 右.