More than 3,000 species of plants, animals, fungi, lichen, and moss visit or reside in the Concord area, with tremendous species diversity in Walden Woods, Minute Man National Historical Park, Great Meadows National Wildlife Refuge, Estabrook Woods, Lincoln, Southern Carlisle, and other natural areas. What are these species? Find out by joining the Great Walden BioBlitz on Saturday, July 6, 2019 and follow the project on the app, iNaturalist.