Sea or bay
Lacus Dor[?
Listen to the story
Far out in the lands east of the Sea of Azov and north of the Taurus mountains, the map draws a lake with a river running straight through it, its line unbroken, and older copies label it Lacus Dor. The name has since faded almost entirely. Only a black letter A can still be made out over the river's course, perhaps preceded by an L, with no trace of further lettering.