The geological heritage (or ‘geo-heritage’) encompasses natural geological or geomorphological features possessing aesthetic, intrinsic, scientific and educational value, that provide unique insight into geological processes affecting the formation or evolution of the Earth. Often, only by human activity, these features come to light. In that case, we can talk at the same time of natural (geological), as well as cultural (historical, industrial, mine) heritage. Geo-heritage can be divided to “in situ” (e.g. outcrop of a specific rock) and “ex situ” (e.g. mineral collection). In Croatia, 53 localities are protected exclusively due to their geological value. Those localities have different level of protection, special reserves (paleontological and geographic-botanical)and nature monuments (geological, paleontological, geological-paleontological, geomorphological, geological-geographic and hydrological). In addition, there is one case of protected minerals. Geo-heritage in Croatia is located within the larger protected areas such as strict reserves (e.g. Hajdučki i Rožanski kukovi), national parks (e.g. Paklenica), nature parks (e.g. Papuk which is also Geopark), regional parks (e.g. Moslavačka gora) and significant landscapes (e.g. Barać caves etc.). Exploitation of geological resources has played an important role in the development of mankind since prehistory until the present days. Hence, historical mining sites represent valuable industrial, cultural and scientific heritage for Croatia which has a long mining tradition. In addition, many surface and underground outcrops that were opened by quarrying and mining, as well as ex situ collections of minerals, rocks or fossils found at such sites, represent valuable geological heritage. In Croatia, stone material has been the most important resource exploited throughout history, with many abandoned quarries that could potentially represent geological heritage sites. Among them, only two are already protected as geological monuments of nature, Rupnica near Voćin where columnar albite rhyolite became the first protected geological site in Croatia and quarry Fantazija near Rovinj as unique example of carbonate sedimentology. Although, in Croatia nowadays there is no potential ore deposits, there were times in the past when metal production was significant. Although not protected as geological heritage, two sites are revitalised for geotourism (copper mine Rude and silver mine Zrinski). There are also several important historical mining sites of non-metallic minerals. Unfortunately, so far, none of them are accessible to wider society. However, Radboa museum is good example how such sites and mining technology (sulphur mine and Radoboj machine) could be presented to public. Coal and bitumen were mined in Croatia as well. Mining tradition at some coal mining places is preserved in the form of non-material heritage (e.g. Rudarska četa in Ivanec). Based on the above, there is plenty of room for work on the promotion of geological heritage related to mining in Croatia. Preservation of geological heritage within the mining heritage context is fundamental to promote proper protection, valorisation and possible future utilization as geotouristic sites. Hence, running European wider society learning project “MineHeritage: Historical Mining – Tracing and Learning from Ancient Materials and Mining Technology” is a good basis for longer-term planning of geoconservation. The aim of this project is to raise society’s awareness of usage and need for raw materials. Since the project is in its initial phase, beside expected outcomes, entries for the European database on ancient mining sites, abandoned mines, classified heritage sites related to historical mining in Croatia will be presented.