October 23: Learning About Dendroglyphs

Los Alamos Living Treasure, author, and all-around-trailmaster Craig Martin and Colleen Olinger, writer and editor, will speak about their research and findings on the dendroglyphs–tree carvings–at the Valles Caldera. Together they will explain the project, how they look for, record, and photograph the dendroglyphs, and will explain what has been found.

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