Amphibians are the most threatened group of vertebrates on the Earth, due in part to habitat destruction and fragmentation. This is the case of open-pit mining operations, which cause devastating effects on the terrain. However, due to the impermeability of the substrate, quarries may be an opportunity to ensure the connectivity of amphibian populations, although the impact is not yet known. In addition, this knowledge may be important to understand better the biology of the species, to manage future exploitations and to be able to implement appropriate compensation measures. Therefore, our study will focus on the role of the quarry as a refuge for amphibians and as an ecological corridor. To achieve this objective, we will use radiotransmitters on two threatened species of the area that have very different habits, the common midwife toad (Alytes obstetricans) and the common frog (Rana temporaria). Monitoring of individuals will be combined with sampling of water points (streams, ponds, etc.) within a 3 km radius. We will map the habitat of dispersion and obtain connectivity maps. The models will aim: 1) find the ecological corridors for amphibians movements, and 2) infer the current importance of the quarry as a node and in a possible future scenario after the proposed actions.