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The Great Lakes Ecoregion

Map of Indiana's Great Lakes Ecoregion.

Indiana Dunes and Piping Plover. Northwest Indiana is a biodiversity hotspot because three ecoregions intersect here--where the great lakes, the prairies and the forest come together.

Phragmites, Purple Loosetrife and Buckthorn are examples of invasive plants impacting the region. Next to loss of habitat, invasive plants are the biggest threat to native biodiversity.

Time lapse side-by-side comparison industrialization of Gary Lake area. The “lines” were formed when ancient glacial Lake Chicago receded thousands of years ago. A series of linear sandy beach ridges alternate with long narrow wetlands in parallel bands to form this rare community called, dune and swale.

Ivanhoe Dune & Swale with Yellow Lady's Slipper Orchids and Karner Blue Butterfly.

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