The study perimeter is located in the Pădurea Craiului Massif from the northern Apuseni Mts., in the Bihor Autochtonous Domain. The Pădurea Craiului Massif is built up of Jurassic-Cretaceous limestone deposits, corresponds to the Bihor Carbonate Platform, a Mesozoic shelf unit. Several bauxite levels were identified within the Upper Jurassic-Lower Cretaceous carbonatic succession; the stratigraphic position and the main features of these are reviewed here. In the Pădurea Craiului Massif, the mining activities were focused especially on the extraction of the bauxites localised around the Jurassic-Cretaceous boundary. After ceasing of the mining activities, most of the quarries and mines were left behind. The study was aimed to track the environmental impact during the bauxite mining activities and especially after their cessation, while also suggesting potential remediation strategies.