The High Aluar was a naturally occurring pass through the Nathaghal Mountains bordering north Halruaa.
This hilly pass was the only physical way into Halruaa by land through the mountains known as the Walls of Halruaa.
- ↑ 1.0 1.1 1.2 Tom Prusa (1993). The Shining South. (TSR, Inc), p. 3. ISBN 1-56076-595-X.