P T J Resources mines gold with an open pit system. Currently, mining at the Open Pit South Osela has reached the elevation of 675 meter. It is necessary to analyze the avalanche potential on the slope that is formed so that mining operations are not disturbed. This study aims to measure how big is the avalanche potential stereographically on the slope of elevation 690 meter. Even so, to know the type of avalanche potential which then sought the solution.Primary data is collected through window mapping, where all the structures exposed on the slope surface are reconstructed (by unit area) and divided into several segments. The length of the slopes studied is 180 meters, which is divided into 18 segments. The standard window mapping using the ISRM standard 1981 which later converted into the rock mass classification of RMR Bieniawski.Mapping data is processed using stereographic analysis with Dips software from Rocscience to obtain discontinuities orientation, which previously reviewed on Hoek and Brown Failure Criterion to obtain friction angle in rocks with the help of Roclab software from Rocscience. Given the parameters of kinematic or stereographic analysis are the orientation of the slope, the orientation of the discontinuities and the internal friction angle.The results showed, 4 out of 18 segments are potentially avalanche, which are G Segment, I Segment, J Segment and Q Segment. Where, G Segment, I Segment and J Segment are potentially wedge fail, whereas toppling failure is potential to occur in Q Segment.