Trip Leader: Steve Hartman Winter Nature Walks are an excellent way to get outside and enjoy some winter fresh air and Stauffer's Marsh Nature Preserve offers many treasures this time of year! This walk is free and open to the public, however registration is strongly encouraged. Please register below. Participants will meet in the parking area at the north end of the Marsh at 9:00 am. The Preserve is located in Back Creek Valley, one-half mile south of Shanghai, on…