The mountains were named after the glaciers of their highest peaks. The range lay mostly East-West, but also had a northern section, which was separated from the main line of the Hithaeglir "Misty Mountains" by the Gap of Rohan. Even at the southern latitude of Gondor and Rohan, the White Mountains bore snow even in summer, suggesting they were extremely high. The range had no passes. The Paths of the Dead passed under it, but only the most courageous (or foolhardy) ever ventured that route. The White Mountains formed the northern boundary of Gondor and the southern boundary of Rohan except in their easternmost provinces, where Gondor's province of Anorien lay to the north of the mountains.