Click here for a map of Millennium Reserve

The Reserve stretches from downtown Chicago southwest to suburban Park Forest, Illinois and southeast to the Indiana border then into Lake, Porter, and LaPorte counties.

On the Illinois side, it encompasses numerous neighborhoods on Chicago’s south side, the southeast lakefront, and 37 south suburban municipalities. In aggregate, this includes a collection of over 15,000 acres of open space such as parks, trails, wetlands, and forest preserves. Nearly 6,000 of these acres are considered high-quality natural areas. In Illinois, it also includes a barge channel, five interstate highways, five major railroads and two short-line freight railroads, and the nation’s largest intermodal transportation center.

Millennium Reserve in Indiana and Illinois is home to two national parks -- Indiana Dunes National Lakeshore and Pullman National Monument, one national heritage area, and two proposed national heritage areas as well as more than two million residents.

Updated June 2016