남쪽으로 대산천이 흐르며, 관개 시설로는 가작마을 동쪽에 화동제·복평제, 남쪽에 가작제가 있다.
Daesancheon Stream flows in the south, and as irrigation facilities, there are Hwadongje Reservoir and Bokpyeongje Reservoir in the east of Gajak Village and Gajakje Reservoir in the south.