Petroglyphs at Ginko Fossil Forest State Park
This wall at the Ginkgo Petrified Forest Interpretive Center display some of the petroglyphs rescued from along the Columbia River before the flooding of the Manapam Reservoir.
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The URL is: https://gotbooks.miracosta.edu/gonp/grandcoulee/html/gc1032.htm
Last modified: 1/5/2011