Riinoff is one of the faclors t ha t can cause landslides. This phenomenon occurs in Lematang watershed especially in upstream region. The purpose of this research is t o determinerunoff t ha t occur i n LemutangHulu sub-watershed. In the analysis of runoff, LematangHulu watershed w as drvided into 5 sub-watershed, namely Sub DAS L Hulu 1 - Sub DAS L Hulu 5. The method used in analyzing this ru…