Some photos from the GRC Fieldtrip to the Long Valley in California, from the GRC Annual Meeting, September 18-20, 2015
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| Gene Suemnicht describes the geology on top of Mammoth Mountain |
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| Sheng-Rong Song (left) and Gene Suemnicht look out from the Inyo Craters south to the Mammoth Mountains |
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| GRC Fieldtrips are a great chance to meet new friends |
