The Tuttle Marsh National Wildlife Area is a 5,000-acre wetland complex between Oscoda and the Tawas Bay area in the Northeastern Lower Peninsula of Michigan. It is surrounded by hundreds of acres of wetlands. Water birds abound. Herons, bitterns and many shore birds make this marsh their home. During the spring and fall migratory seasons, it is a stopping point for several types of ducks and geese. Tuttle Marsh is part of the AuSable Valley Audubon Trails with several marked hiking trails.