Cyan's English Translation:
No translation provided by Cyan.
Raw D'ni Translation:
Text in upper right hand corner:
Surveyors' Guild Map
From D'ni to the Surface
shulen te telookahm aytrus
Drawn(?) by Surveyors' Guildsman Aitrus
The number under tehlook bahtsahnah is most likely some kind of serial number, it is too large to be considered anything more than that. Note that in the same block where the title lies, we also have an enlarged image of what appears to be the Surveyor's Guild symbol, which also appears on all four corners of the map.