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![]() Date: 2010-09-23 18:47:30Cascade Volcanoes Volcanic rocks Cascade Range Shield volcanoes Deschutes County Oregon Lava Medicine Lake Volcano Three Sisters Types of volcanic eruptions Geology Volcanology Volcanism | Source URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 413,54 KBShare Document on Facebook |
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