DescriptionLake Toba, North Sumatra (64).JPG English: The beauty of the natural scenery of Lake Toba, North Sumatra. Date 21 September 2009, 13:32:42 Source...
English Toba caldera in Sumatra, Indonesia produced the largest volcanic eruption in the last 2 million years. The caldera is 30 by 100 km, and has a...
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