Have you ever wondered how the Upper Peninsula of Michigan came to be… why it's a part of Michigan, and not Wisconsin? Gary Entz has the story for this week's A Northwoods Moment in History . The Upper Peninsula of Michigan is part of the same Great Lakes ecosystem that reigns over Wisconsin’s Northwoods, and a glance at any map is enough to see that the UP really is a land extension of Wisconsin. In contrast, there is a water boundary between the UP and Michigan’s Lower Peninsula and at no