GRAND TRAVERSE BAY

northeastern arm of Lake Michigan, indenting the northwest coast of the Lower Peninsula of Michigan, U.S. The head of the bay (32 miles long and 12 miles wide) is divided into the East and West arms by Old Mission Peninsula (17 miles long by 3 miles wide), with Traverse City (q.v.) at its base. The Leelanau Peninsula lies west of the bay, which is noted for its year-round fishing. The bay's shores form an important summer-resort and cherry-growing region.