Once used for the disposal of slag, a waste product of the steel making process, Indian Ridge Marsh is taking on a new life. This natural area – located in the Southeast Side’s South Deering neighborhood – covers 154 acres between Lake Calumet to the west and the Calumet River to the south. Large portions of the marsh were once filled with dredge material from disposal activities of the U. S. Army Corps of Engineers in 2015. Since then, the site is being restored to its historic wetland habitat thanks to the Chicago Park District and its partners. On the north end of the marsh, mulched trails cut through wet prairie, an important habitat once common throughout the Calumet region. Native flowers and grasses offer food and habitat to a myriad of birds and insects. Visitors can walk the trails and connect with nature or relax and take in picturesque marsh and wildlife views. In the center of IRM is a nature play space and picnic tables – it’s a great place to relax, play and enjoy the sights and sounds of the marsh and savanna.