Winfield Landing Seaplane Base (C61) is a public-use seaplane base serving Coral, Michigan, at 913 feet above sea level, with CTAF 122.9. Its lanes: 15W/33W (3,000 × 50 ft, water).
This diagram plots every lane from the FAA’s surveyed threshold coordinates, so it sits at true heading and true length — a gift for the pilots, students, instructors and families of C61.