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Pilanesberg caldera
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Ancient Volcano Tattooed the Earth with Giant Rings

Concentric circles of rocky hills and valleys in South Africa tell the story of a billion-year-old collapsed volcano in newly released photos from NASA.
The circular Pilanesberg caldera is located in the South African province known as North West, in Pilanesberg National Park. The caldera, or cauldron-shaped crater, features different rings of rock that make up a near perfect circle, with structures that rise about 100 to 500 meters above the surrounding landscape. The tallest point, Matlhorwe Peak, soars 1,560 m above sea level.

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Posts: 131433
Date:
Pilanesberg
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The Pilanesberg (formerly Pilandsberg) is a mountain in the North West Province, South Africa. The mountain is an ancient volcanic structure, circular in shape, that rises from flat surrounding plains. It is formed by three concentric ridges or rings of hills, of which the outermost has a diameter of about 24 km.
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