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Ulos
From A Wiki of Ice and Fire
Ulos is an island in far eastern Essos.
Geography
It is a mountainous isle located in the Saffron Straits, between Ulthos and the Shadow Lands.[1]
An unnamed ruined settlement is located slightly inland from the northern shore. It is the easternmost island in the known world.[2]
Behind the Scenes
Ulos has not yet been mentioned in A Song of Ice and Fire, only appearing in The Lands of Ice and Fire and A World of Ice and Fire.