Discover what you can learn about ancient Michigan from looking at a rock. Geologist Larry Bean will show you how to “read” the story told by rocks and help you to identify specimens at a local quarry. We will meet at the Discovery Center before driving to the quarry to do some collecting. Cost: $2/person or $5/family. Eddy Discovery Center, 17030 Bush Rd. in the Waterloo Recreation Area near Chelsea. Please register in advance at 734-475-3170.