Agricola wrote:

I've been thinking on a mini sand box setting on Hyperborea. An anomaly in the ocean currents eventually floats damaged/abandoned/cursed ships to a certain place where one of the above "upwellings" traps them. An undiscovered species of vine-like  flowering lotus eventually ties them loosely together and degenerate humans fight fish men and sea hydras and other nasties for survival on a variety of human and perhaps alien ships from all time periods of Hyperborea history.

Sounds fantastic! Let us know what else you come up with.
 

OK. Did a little map studying and reading of the fantastic setting that is AS&SH last night. We have the six Greater Obelisks making a six sided shape of the Hyperborean world. The Spiral Mountaing array has six "arms" or "spines" spinning out of it. For most you can extend out to the flat portion of the map betwixt the Greater Obelisks-so to extend the logic of that-the underwater topography would have the mountain spines beneath the depths flowing on out. The geographic anomaly seems to be with Thaumagorga's Teeth and the Floating Island of Paradoxan. I didn't bring my notes with me prior to writing this so a bit from the hip here. But I believe I am describing the basics here of this pleasant discovery last night.    

Agricola wrote:

OK. Did a little map studying and reading of the fantastic setting that is AS&SH last night. We have the six Greater Obelisks making a six sided shape of the Hyperborean world. The Spiral Mountaing array has six "arms" or "spines" spinning out of it. For most you can extend out to the flat portion of the map betwixt the Greater Obelisks-so to extend the logic of that-the underwater topography would have the mountain spines beneath the depths flowing on out. The geographic anomaly seems to be with Thaumagorga's Teeth and the Floating Island of Paradoxan. I didn't bring my notes with me prior to writing this so a bit from the hip here. But I believe I am describing the basics here of this pleasant discovery last night.    

It seems you have unearthed or brought to light a few of my intentional designs. Great detective work!
 

Further study of the map has some areas in white while others are gray shaded and was wondering why. So, River Okeanos (spelling?) has crosswinds and in year 4 whirlpools and lies between the 18 and 36 degree marks. I'm thinking of putting the hex of ships outside of that towards the outer edge but not too close. 

Thanks for clearing that up! Makes sense now that you say it. If that made any sense.