Rotting oaks lead to hazardous voids in Indiana’s Mount Baldy sand dune

ScienceDaily: Mount Baldy, a sand dune in Indiana Dunes National Lakeshore, may appear to be no more than an innocent pile of sand grains speckled with vegetation, but the rolling slopes hide narrow, deep holes, which are evidence of entombed oak trees. No one knew the holes under Mount Baldy existed until a six-year-old boy fell into one in the summer of 2013 and was buried. Emergency responders successfully rescued the boy after three and a half hours, but the accident left Indiana University Northwest coastal......

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