Marsh Lake Pathway is located at the Big Knob Forest Campground in Gould City, along on the coast of Lake Michigan. Bike or hike and surround yourself with the beauty of the Big Knob Forest, featuring beautiful dune and swale habitat on the northern shores of Lake Michigan. Visitors will find this one-loop, 1.5-mile trail inside the Big Knob Forest Campground; however, the general public can access and utilize the trail.