Category: Maps

Production plants of the cement industry

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Production plants of the brick manufacture industry

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Loss of cultivated land in Switzerland since 1912

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Ski resorts in Switzerland and neighbouring areas

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Via ferrata climbing

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Geology of Europe

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Man-made caves: pits, mines and tunnels

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Palaeogeography: historical geology

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Tectonics: structure of the earth crust

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Mineral energy raw materials

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