377 followers
5,710 followers
RT @USGS: [PUB] Geologic field-trip guide to Long Valley Caldera, California SIR 2017-5022-L https://t.co/UrtnaKDKUu https://t.co/6Ke8hwWCEZ
1,125 followers
#VolcanoCup and I vote for #LongValleyCaldera, because it gives so many other fine volcanological features such as these large spherulites in the Hot Creek rhyolitic lava flow. #voteforLongValley Further reading: https://t.co/MujzLesKol https://t.co/CrbA1
239 followers
RT @USGSVolcanoes: New field guide for #LongValley #Caldera, CA w/ 38 field-trip stops! https://t.co/ZogZf56At6 https://t.co/F00e7AsiNL