갈마라는 마을 이름은 마을을 둘러싸고 있는 산이 강 건너에서 보면 말이 물을 마시고 있는 형국이라 해서 붙여졌다.
In the case of the village named Galma, it was given that the shape of the mountain surrounding the village was like a horse drinking water when viewed from across the river.