One of four AVAs in the state of Michigan, Old Mission Peninsula is located in the far northwestern corner of the mainland of the state; it borders Traverse Bay, an extension of Lake Michigan. The AVA covers the entire peninsula, which is 19 miles long and only 3 miles in width. While winter frosts can be a problem this far north, the lake has a moderating effect; it also plays a similar role during summer. As you might imagine, cool climate varieties such as Riesling and Pinot Noir are the most widely planted, followed by Chardonnay, Pinot Grigio and Cabernet Franc. There are currently around ten wineries in this AVA. (Wine/Appellations)