Crater, Volcanic explosion. 火山口, 火山爆發

Jassen Todorov flew his 1976 Piper Warrior aircraft above the Ubehebe Crater in Death Valley national park in California
Death Valley national park images from above shows the true power of a volcano | Daily Mail Online
Read more: http://www.dailymail.co.uk/news/article-3606908/That-s-quite-crater-Amazing-pictures-Death-Valley-national-park-shows-true-power-volcanic-explosion.html#ixzz49cNQYvJi
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