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A Characterization and quantification of the geomorphic activity of three\udscenarios of silica sand slops of Central Spain (Segovia and Guadalajara\udprovince), is being carried out: (a) silica sand slope gullies; (b) Non reclaimed\ud(abandoned) silica sand mines; (c) abandoned silica sand mines reclaimed with a\udgeomorphic approach. On the silica sand slope gullies, gathered data point at\udvery high rates of erosion and sedimentation, since runoff and hydric erosion\udoccurs on them almost instantaneausly after precipitation. When no reclamation\udis made, silica sand mines evolve like 'natural' gullies, and they show higher\udtares of hydric erosion than them. The erosion of non-reclaimed silica sand\udmines produces severe on and off sile environmental impacts. When\udreclamations are made based on geomorphic approaches, runoff and soil erosion\udcan be reduced to the minimum at the pediment areas, whereas the highwalls can\udmaintain a geomorphic activity which integrates them into the landscape. The\udunderstanding of these scenarios is allowing improving new reclamation plans\udon silica sand and kaolin mines of Central Spain,  concerning their topographical\udand watershed design, and layout of the reconstructed terrain (waste dumps,\udsurficial deposits, and topsoil). The latter example shows a desirable framework\udof collaboration between mining companies, protected areas managers and\uduniversitie

Silica sand slope gullying and mining in Central Spain: erosion processes and geomorphic reclamation of contour mining