Marissa Nelson | August 3, 2021 4:56 pm (WTTW News) Parts of Big Marsh Park used to be a dumping ground for waste from steel mills on Chicago’s Southeast Side. Thanks to our sponsors: But the Chicago Park District has worked to restore the area’s 278-acre natural space, and the nonprofit Friends of Big Marsh is developing the area for what it calls “eco-recreation.” Today, Big Marsh is also a bike park. However, the Southeast Side’s storied industrial past and present make it difficult for locals to access the park and get around their communities, said Paul Fitzgerald, executive...