Mountain Biking Highlight
The Blue Stone is a rock formation near the village of Randen at about 836 meters above sea level. The rock is today a protected natural monument and together with its surroundings a popular recreational area for the city of Blumberg. The name comes from the color anthracite, which is strongly reminiscent of blue. But the weathering turns the outermost layer of the blue stone grayish-brownish.
August 5, 2018
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