Hey folks,

I didn't receive my email notification when replies were made, so I hope you forgive me for not replying.

The blue ring is actually a sloped stone embankment, or I interpreted it as such. I dunno what purpose it serves, but the original module had it, and I was just concerned with doing a faithful conversion. Here is the original map from the module, for reference.

This map was made in Dundjinni, with post-work in Photoshop.