a little help on treasure map location

https://scontent-b-sin.xx.fbcdn.net/...91949533_n.jpg

i'm looking everywhere, not sure where is this place

@Lacerta no :(

Edit : found it ! http://www.reddit.com/r/ffxiv/commen...en_map_please/
it 15 26 but it a bit far off to the upper right

Try (15, 26)

try location x24/x23

Would help if the image wasn't compressed so much, it's messing with the details.