Digitalization is a vital factor for mining efficiency, safety and sustainability. Emerging new technologies come in the form of autonomous haulage, drilling, and conveying, and in almost every new integrated trend there is often major linking with GIS technology. Since mining operations cannot operate without georeferenced data the keen first step is to preserve the data that we have and transform it in a form, suited for simpler day to day usage. The aim of this thesis in collaboration with Moldan Baustoffe GmbH &Co KG is to help gather and transform data sets and underground maps with material content of their mine into digital. In order to have a better understanding, GIS history and applications will also be explained. After obtaining data sets we use various freely available software to try and display or manipulate data. The goal of this thesis is to combine the data obtained from the ¿Webing¿ underground mine and to display the mine in 3D combined with its core drillings. This will be performed in QGIS software. The simplicity of the software as well as its open-source platform provides a wide range of properties. For the sake of future use of the demonstrated system, a handbook manual with all the necessary steps needed for the program and visualization of the 3D model will be incorporated within the thesis. Serving future purposes for all operating staff members.