those lines on the map

If you look closely at my pictures of the map you'll see lines of green. This detail from the previous photo below shows a point where 16 lines begin. This place on the continent of Nordinya is labeled as Aari-Tinhlan, but in my old notes I've also seen it called it Orytinlan. There is a magnificent tower here.

The green lines are straight and go in compass directions. Mountains, such as those shown here, do not stop them. The green lines, of course, are magical.