Grand Traverse Bay, arm of L. Michigan, W central Mich., 32 mi/51 km long and 10 mi/16 km wide; 45°05'N 85°28'W. The bay is known for its fishing and boating. The surrounding area is an important cherry-growing and resort region. Traverse City is located at the head of the bay. Old Mission Peninsula divides S part of bay into East and West Areas, Old Mission Lighthouse at N end.
