 Participants will be checked in and given more detailed information when they arrive on the main East Rydell entrance Saturday morning. Youth can stay for the entire four-hour event or just a portion of it. Rydell National Wildlife Refuge is located three miles south of Highway 2 between Mentor and Erskine at 17788 349th Street SE. For more information, please contact Greg Knutson, Refuge Manager, at 218-686-4329.