Popular Beach Disappears Underwater in Huge Coastal Landslide-Sleeping Bear Dunes, Michigan [open pdf - 401KB]
"In February 1995, a 1,600-foot stretch of popular beach at Sleeping Bear Dunes National Lakeshore suddenly slid into the waters of northeastern Lake Michigan. The National Park Service (NPS) immediately requested the assistance of the U.S. Geological Survey (USGS) in evaluating the hazard at the lakeshore. To protect the public, USGS and NPS scientists are conducting studies that will help predict when the landslide-prone area will move again."
U.S. Geological Survey: http://www.usgs.gov/