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The uncontrolled water flooding in an abandoned open pit mine modifies the rock mass stability, causing rock wall falls and surface erosion that may affect great volumes of material. As regards Sardinia quarries, most of the open pit excavations need a recovery plan. The last mostly depends upon knowledge of the relationship between the geomorphological asset and the nature of weathering and related erosion processes. The aim of this paper is to evaluate the land degradation with a detailed photogrammetric survey ...