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Join Grass River Natural Area for a 50th Anniversary Celebration and Presentation at Ethanology in Elk Rapids. This is a fundraiser to support their educational programs. At 6pm enjoy a presentation with James Dake, author of “Field Guide to Northwest Michigan,” on the plants, botanicals, and animals that make Northern Michigan unique (suggested $5 donation). From 7pm to 8pm enjoy cocktail hour with a specialty cocktail where $5 from each drink sold goes to Grass River.