Holes in Indiana Dunes’ Mount Baldy likely caused by buried ‘ghost forest’

MICHIGAN CITY, Indiana — Trees slowly buried by windblown sand are likely the root cause of dangerous holes that have appeared in the towering Mount Baldy sand dune in the Indiana Dunes National Lakeshore, a geologist says. Erin Argyilan believes pockets were formed around tree branches and trunks enveloped by Mount Baldy. She says that […]