Altair Castle (ruins)
Altair Castle once oversaw and guarded the east-west passage of Altair Pass. The castle is carved into the rocks, a hundred feet above the base of the Altair Mountains. Its siege weapons could reach the passage road of Altair Pass. It had a garrison of 400 at normal times, capable of holding triple that.
The history of this place is chronicled in The History of the Grand Barony of Altair and Altair Pass.