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Results of the rock mass state study for the rock burst hazardous deposit Oleniy ruchey are presented in the paper.Studying of the rock mass state was carried out by field observation (in-situ measurements) and numerical modeling.The stress-strain state modeling of the rock mass was performed by Sigma GT software developed in the Mining Institute.The analysis of data obtained by different methods was carried out and preliminary estimation of the rock mass state at the Oleniy ruchey deposit was obtained.