의병들이 이양면에 있는 계당산 일대에서 활동하였는데, 이 계당산 일대를 쌍산이라 불렀던 것에서 쌍산 의소라는 이름이 붙었다.
The righteous army was active in the area of Gyedangsan Mountain, located in Yiyang-myeon, and this area of Gyedangsan Mountain was called Ssangsan, so it was named Ssangsan Uiso.