perched dune systems / upper slope law / present site / /
NaturalFeature
Grand Sable Dunes / Sable Creek / Lake Nipissing / Grand Sable Dune / Lake Huron / Lake Superior / Green Bay / Grand Sable Lake / Grand Sable Dunes plateau / Dunes Preserved / Sable Falls / Great Lakes / /
Organization
National Park Service U.S. Department of the Interior / / /