The water of the gypsum quarry pond is purple in color. The reason for the ...

A woman photographs the purple-colored water of the Gipsbruch pond. The rea...

Excursionists photographed the purple-colored water of the gypsum quarry po...

Excursionists stand on the banks of the Gipsbruchweiher pond, whose water i...

The water of the gypsum quarry pond is purple in color. The reason for the ...

The water of the gypsum quarry pond is purple in color. The reason for the ...

The water of the gypsum quarry pond is purple in color. The reason for the ...

The water of the gypsum quarry pond is purple in color. The reason for the ...

The water of the gypsum quarry pond is purple in color. The reason for the ...

An excursionist photographs the purple-colored water of the Gipsbruchweiher...

Excursionists stand on the banks of the Gipsbruchweiher pond, whose water i...

Excursionists walk along the banks of the Gipsbruchweiher pond, whose water...

Excursionists stand on the banks of the Gipsbruchweiher pond, whose water i...

The water of the gypsum quarry pond is purple in color. The reason for the ...