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Tolleston Dunes Trail


5800 Dunes Hwy., Portage, IN 46368


Phone: (219) 395-1882


In just 2.6 miles, this trail in the Indiana Dunes National Lakeshore traverses a number of different, beautiful, and wildlife-rich habitats, including black oak savanna, Tolleston Dunes, and remnants of the Great Marsh. Black oak savanna along the trail hosts plenty of wild lupine--the sole source of food for the Karner blue butterfly, a federally-listed endangered species. The lupine blooms in late May, so that's a great time to see the butterflies. The lowland marshes along the trail were once part of the Great Marsh, which originally stretched over twelve miles from Gary to Michigan City. Indiana Dunes National Lakeshore resource managers are working to restore these marshes. The trail may be indistinct in places, so carry a map and watch trail markings carefully.