This article presents the design of a geogrid-reinforced soil retaining wall with a gabion facing, 18 m high and as part of the structure of a primary crusher in a mining project. It should be taken into account that the construction of the reinforced soil wall will be carried out at an altitude of more than 5000 meters above sea level, which is unusual. The design of the wall considered both safety analysis against collapse (ultimate limit state) and the prediction of admissible deformations (serviceability), in accordance with international standards. The work also includes the evaluation of stress-strain behavior in 2D and 3D using the finite element method, where the influences of the safety factor have been evaluated. In recent years, this type of system has been used in the mining sector with very good results due to its characteristics and low cost, with experience in works such as crushers, hopper discharge points, dam expansions, retaining walls, etc. Its technical characteristics and its cost in comparison with traditional reinforced concrete wall solutions, make this solution an excellent alternative that combines resistance, flexibility, versatility and economy.