In the sorts of places you would least expect it, author Joel Greenberg reveals an abundance of life and bio-diversity in his A Naturalist's Tour of Southern Lake Michigan. Highlighting areas around the rim of southern Lake Michigan, Greenberg's work discusses some state parks and other nature preserves. Serving as a guide, he signals to his readers small outcroppings of nature that have survived and endured, in spite of civilization. Fox example, Mr. Greenberg calls attention to the Indiana Dunes National Lakeshore and State Park. A wet, grassy plain full of plantlife, the park sits north of the industrial southern tip of Lake Michigan, exactly where one might have failed to look for a park that, with the exceptions of the Grand Canyon and Great Smoky Mountains, has more types of plants than any other national park.