Frozen Sand

Frozen Sand at the banks of the Salzach River, near Hochburg-Ach, Innviertel, Austria. December 2009.

Frozen Sand at the banks of the Salzach river, near Hochburg-Ach, Innviertel, Austria. December 2009.

I think what happened here is that the receding water of the Salzach river had left a layer of frozen sand before the water receded further and the river washed out the sand underneath it.

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