Tannenbusch Dunes is a nature reserve located in the Tannenbusch section of Bonn. The nature reserve consists of inland dunes and measures 6.7ha. The dunes appeared after the last ice age, approximately 10,000 years ago. Because the region had no vegetation at that time, the sand was blown into this area from an old river bed of the Rhine.
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Coordinates 50°44'39.969" N 7°3'41.009" E