Ulthos is a landmass in the far east, which may or may not be another continent. It lies to the south of Asshai and the Shadow Lands in Essos and to the east of Sothoryos. It is separated from the Shadow Lands by the Saffron Straits. The island of Ulos is located in the straits between Ulthos and Essos.
Behind the Scenes
- The Lands of Ice and Fire, The East.
- The World of Ice & Fire, Other Lands.
- Vulture: George R.R. Martin on What Not to Believe in Game of Thrones (November 6, 2014)