The Indiana Dunes hugs 15 miles of the southern shore of Lake Michigan and is one of the most diverse biomes in the United States and indeed in this part of the world. It consists of 11 types of ecosystems (from wetland to oak savanna to prairie) and has a very very interesting history. Back in the late 1800s, early 1900s, Many of Chicago’s industrialists didn’t want to have the ugliness of industrial landscape in the city, so they built their money making industries (steel and shipping especially) on the shores of Lake Michigan in Northern Indiana.
This stretch of Lake Michigan used to be so polluted that some parts were deemed biologically dead BUT eventually, with community, industry, government and other stakeholders working together, parts of the lakeshore have been restored to their full glory. The restoration is still on going and the success of this movement has served as a model for many other conservation efforts around the world. There is a great documentary called Shifting Sands that chronicles the conservation and sustainability of this region.