Sand holes; Karst phenomenon near Albstadt-Truchtelfingen; Swabian Alb, Germany

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Photo credit: © Zoonar/Jürgen Vogt / Alamy / Afripics
License: Royalty Free
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Keywords: alb, albstadt, albstadt-tailfingen, albstadt-truchtelfingen, alps, area, cave, caves, dolomitsand, geotop, germany, hiking, holes, karsthöhle, karsthöhlen, karstlöcher, phenomenon, sand, sandbollenhöhlen, sandlöcher, schwäbische, swabian, traufgang, trough, troughs, vogtj, wacholderhö