In the Fonstad Atlas, the island that other maps label “Tuern” is instead labeled “Uttersea,” and there’s a different island northwest of the Ice Peaks that’s called Tuern. Is that how it was in your home Realms? If so, why the change? Yuo have stumbled on one of the earliest (oldest) NDAs involving the Realms. I will ask to see if it can now be safely ignored, but until I get an affirmative answer: can't tell you! ;}#Realmslore
— Ed Greenwood (@TheEdVerse) January 26, 2019