선달산 북쪽에 용아골, 칠룡골이 있는데 용아골은 선달산 내맥을 이어왔다는 뜻이며, 칠룡골은 일곱능선이 함께 선달산으로 이어졌다는 뜻이다.
There are Yongagol Valley and Chillyonggol Valley to the north of Seondalsan Mountain, that Yongagol Valley means continued mountain range of Seondalsan Mountain, and Chillyonggol Valley means that the seven ridges were led together to Mt. Seondalsan.