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How well can you identify trees in the fall and winter? Join us at Grass River Natural Area on Saturday, November 11th at 1 pm to gain the skills to identify Michigan trees by their bark, buds, and branching patterns while taking a short hike on our beautiful trails with a naturalist. This 1.5 hour program is $5 per participant. For more information visit http://www.grassriver.org/classes-and-programs.html.