Event Series: Sleeping Bear Dunes National Lakeshore is established
Sleeping Bear Dunes National Lakeshore is established
October 21, 2025
An area with massive coastal sand dunes on the Lake Michigan shore was officially established as Sleeping Bear Dunes National Lakeshore on this day in 1970. The park covers a 35-mile-long stretch of Lake Michigan’s eastern coastline, as well as North and South Manitou islands.