File:Columbia River Basalt Group 1675.JPG

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English: Columbia River Basalt Group Grande Ronde Basalt (middle Miocene), 16.9 Ma to 15.6 Ma; upper flows of normal magnetic polarity (MvgN2)
Date 16 April 2010, 15:12:37 +00:00
Source Own work
Author Walter Siegmund (talk)
Camera location46° 51′ 12.96″ N, 120° 29′ 17.88″ W  Heading=225° Kartographer map based on OpenStreetMap.View all coordinates using: OpenStreetMap - Google Earthinfo

©2011 Walter Siegmund


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current17:25, 16 June 2011Thumbnail for version as of 17:25, 16 June 20114,272 × 2,848 (7.58 MB)Wsiegmund (talk | contribs)
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