USGS Volcanoes🌋
@usgsvolcanoes
Delivering official updates and info for U.S. volcanoes. usgs.gov/vhp email: [email protected]
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http://volcanoes.usgs.gov 04-08-2016 17:48:19
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What did the Yellowstone landscape look like after one of its large caldera-forming eruptions? Would you believe it probably resembled Alaska? #Yellowstone #CalderaChronicles draws clues from crystals this week. ow.ly/Bxkl50T5S2F Yellowstone National Park