The evaluation of resources is one of the most important tasks of geotourism research. This paper presents the method of geotourist assessment, which was applied on the example of sites presenting the Neogene volcanic activity within Vtáčnik mountain range. Two stages of assessment are proposed: inventory and valorization. The inventory includes identification of resources, initial selection and characterization. During the valorization, a researcher uses the point bonitation method and takes into account the following indicators: scientific value, location and additional values. The result of valorization process is presented in table which allows comparison and categorization of the selected sites. The assessment of considered region revealed, that selected sites like rock walls, rock forms, abandoned quarries and hills with ruins are characterized by high or medium geotourist value. Consequently, Vtáčnik is an example of area of a great potential for geotourism development.