The Eastern mountains are a mountain range in Serenia. They apparently lie to the east of the hills of Serenia, where the Wedzel Wolves live.
Behind the scenesEdit
In the KQ5 the mountains to the east were known as the Great Mountains or great mountains. They are described at least once in the game as the 'eastern mountains' (Eastern is not capitalized).
While Chapter 1 does refer to Great Mountains in one line, the reference appears to be more a reference to the King's Quest Companion, and to the KQ3 Mountain Range, which was called Great Mountains in The King's Quest Companion books.