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Meise Botanic Garden - Belgium |
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Mesta River - Bulgaria |
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Mondsee catchment - University of Salzburg - Austria |
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Mountain catchment - Czechia |
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Müggelsee - Germany |
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Nant Teyrn - United Kingdom |
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Narrator Brook - United Kingdom |
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National Park Berchtesgaden - Germany |
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National Park Hunsrück-Hochwald - Germany |
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Nemunas Delta Regional Park - Lithuania |