The dungeon map was really meant more as an extra, so people who wanted to see the layout of a dungeon instead of trying to figure out what it was like from the description alone could do so. It is not labeled because I didn't need it to be labeled.
I have read only few other campaign journals, but I don't recall ever seeing one that also included dungeon maps. Should I take to mind that I shouldn't include them in the future?
I specifically did not want to post the dungeon map at the same time as Session 6 because my players also keep up with this log and would therefore have gotten inside information that they should not know of yet.