Ontologija rudarske dokumentacije RuDokOnto is developed within PhD Thesis "Model development for managing mining project documentation" to support the system which could enable efficient managing of mining project documentation in electronic form, based on human language technology, for information retrieval and information extraction by using different language resources. The mining domain ontology RuDokOnto is developed for the purpose of collecting, describing, and systematization of mining project documentation throughout the phases of the mining project's life cycle in a way that links other related ontologies, such as for example EarthResource, MinExOnt etc..