RT @USGS: [PUB] - Geologic field-trip guide to Mount Shasta Volcano, northern California Scientific Investigations Report 2017-5022-K3 (201…
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RT @USGS: [PUB] - Geologic field-trip guide to Mount Shasta Volcano, northern California Scientific Investigations Report 2017-5022-K3 (201…
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RT @USGS: [PUB] - Geologic field-trip guide to Mount Shasta Volcano, northern California Scientific Investigations Report 2017-5022-K3 (201…
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[PUB] - Geologic field-trip guide to Mount Shasta Volcano, northern California Scientific Investigations Report 2017-5022-K3 (2017) https://t.co/N5d3OCwmpD #volcano #california https://t.co/iutwNZ2vTs