Researchers try to pinpoint why holes form at Mt. Baldy

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For over a year Mt. Baldy has remained closed on the Indiana Dunes National Lakeshore as geologists and the Environmental Protection Agency work to understand what was causing dangerous holes to form in the massive sand dune.

The research effort is a combination of powerful ground-penetrating radar able to see the internal structure of the dune which is slowly migrating southward, covering old tree stumps and other debris on this section of the lakeshore.

The geologists are also taking core samples, trying to understand what has caused half a dozen holes to form.

It comes on the heels of last summer's dramatic rescue of 6-year-old Nathan Woessner, who nearly lost his life, swallowed up underneath 11 feet of sand for several hours. Hundreds of rescuers and construction crews worked feverishly in what has come to be known as the miracle on Mt. Baldy.

Researchers and the National Park Service want to make sure no one else falls into a mysterious hole, which may be caused by large tree stumps and metal debris deep underneath the dune.

Researchers are still gathering data to understand the internal structure of this massive sand dune. The hope is they will issue a report before the year is over.

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