Park at Indiana , United States
Gary, IN 46403, USA
Unknow
https://www.nps.gov/indu/planyourvisit/west-beach.htm
100 Riverwalk Dr, Portage, IN 46368, USA
Unknow
https://www.nps.gov/indu/planyourvisit/portage-lakefront-and-ri
700-798 Warren St, Gary, IN 46403, USA
Unknow
http://www.heinzetrust.org/miller-dunes.html
8975-9047 Indian Boundary, Gary, IN 46403, USA
Unknow
http://www.heinzetrust.org/miller-dunes.html
450 W 100 N, Valparaiso, IN 46385, USA
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https://www.pnw.edu/gabis-arboretum/
601-673 W 50 N, Valparaiso, IN 46385, USA
Unknow
http://www.heinzetrust.org/walnut-woods.html
9410 Old Lincoln Hwy, Hobart, IN 46342, USA
Unknow
Unknow
1215 N State Rd 49, Porter, IN 46304, USA
Unknow
https://www.nps.gov/indu/planyourvisit/idnlvc.htm
1215 IN-49, Porter, IN 46304, USA
Unknow
Unknow
1100 N Mineral Springs Rd, Chesterton, IN 46304, USA
Unknow
http://www.nps.gov/indu
1100 N Mineral Springs Rd, Chesterton, IN 46304, USA
Unknow
https://www.nps.gov/indu/planyourvisit/campgrounds.htm
709-747 N Mineral Springs Rd, Porter, IN 46304, USA
Unknow
Unknow
1618 N Mineral Springs Rd, Dune Acres, IN 46304, USA
Unknow
https://www.nps.gov/indu/planyourvisit/cb16.htm
W Taylor St, Chesterton, IN 46304, USA
Unknow
http://www.heinzetrust.org/keith-walner-preserve.html
1050 N Mineral Springs Rd, Chesterton, IN 46304, USA
Unknow
https://www.nps.gov/indu/index.htm
Cowles Bog, Westchester Township, IN 46304, Chesterton, IN 46304, USA
Unknow
Unknow
700 Howe Rd, Porter, IN 46304, USA
Unknow
https://www.duneslearningcenter.org/
Unnamed Road, Porter, IN 46304, USA
Unknow
https://www.in.gov/dnr/naturepreserve/files/np-Dunes_PrairieNP.
Porter, IN 46304, USA
Unknow
Unknow