Encyclopedia o f Chicago
Historical Source
Historical Source
I
Indiana Dunes, n.d.

Indiana Dunes, n.d.
Although early twentieth-century efforts to establish a national park in the Indiana Dunes failed, in 1923 preservationists convinced Indiana legislators to create a state park that stretched for three miles along the lakefront in Porter County. The remaining thirteen miles of the county's shoreline remained open and soon became contested ground, as industrial interests, residential developers, and environmental preservationists battled for control.