File:South Sister lava flows, USGS.jpg

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Summary

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Description
English: "Aerial view of the south flank of South Sister composite volcano showing numerous blocky lava flows erupted about 2,000 years ago. Early eruptions formed Rock Mesa (just above center, far left), a broad flat flow emplaced on nearly level ground. Subsequent eruptions formed a line of lava domes and flows that extend from Sparks Lake meadow (lower right) to Green Lakes (just above center, far right). Several small lava domes were also formed on the northeast flank, out of view. Cratered cone in lower left is Talapus Butte, a basaltic scoria cone."
Date
Source http://vulcan.wr.usgs.gov/Volcanoes/Sisters/Images/framework.html
Author C. Dan Miller, USGS/Cascades Volcano Observatory

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Licensing

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Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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current03:01, 14 February 2013Thumbnail for version as of 03:01, 14 February 20133,330 × 2,223 (1.82 MB)Jsayre64 (talk | contribs){{Information |Description ={{en|1="Aerial view of the south flank of South Sister composite volcano showing numerous blocky lava flows erupted about 2,000 years ago. Early eruptions formed Rock Mesa (just above center, far left), a broad flat flow ...

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