But on that July afternoon, Argyilan, an athletic 38-year-old geoscientist at Indiana University Northwest, who was then seven months pregnant with her first child ... dunes are just big piles of ...

Baldy, a dune inside Indiana Dunes National Park. He had dropped through the dune and was trapped. As his friends and family were on their knees, digging the sand, the hole collapsed. It wasn't a ...