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Published on Aug 15, 2013
CWU Geology's Nick Zentner presents 'Ellensburg's Famous Blue Agates". Topics include local bedrock layers in central Washington, the formation of blue agates in the Teanaway Basalt, and river transportation of the agates to Kittitas Valley.
Record on May 15, 2013 at Ellensburg City Library's Hal Holmes Center in beautiful downtown Ellensburg, Washington. 240 folks attended the lecture.