MICHIGAN CITY, Ind. (AP) -- A survey with ground-penetrating radar found dozens of anomalies in a large sand dune along Indiana's Lake Michigan shore where an Illinois boy was buried under 11 feet of sand last summer.
Indiana Dunes National Lakeshore spokesman Bruce Rowe tells WSBT-TV that park service geologists are reviewing the report about Mount Baldy near Michigan City.
That report found 66 spots where there's something other than pure sand in the dune. Rowe says some of those are probably tree stumps or holes, but at least six of the anomalies are metal objects.
Mount Baldy has been closed to visitors since the July 12 collapse that buried then-6-year-old Nathan Woessner of Sterling, Ill., for more than three hours. Nathan survived and returned home after being hospitalized for a couple weeks.