Posted by : Muhammad Khalid Wednesday, 10 September 2014

Ball's Pyramid is an erosional remnant of a shield volcano and caldera that formed about 7 million years ago. It lies 20 kilometres  southeast of Lord Howe Island in the Pacific Ocean. It is 562 metres  high, while measuring only 1,100 metres  in length and 300 metres  across, making it the tallest volcanic stack in the world. Ball Pyramid is part of the Lord Howe Island Marine Park in Australia.  Source

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