U.S. region consisting of Minnesota, Wisconsin, Michigan, Iowa, South Dakota, and North Dakota
The Upper Midwest is a region of the United States with no agreed-upon boundaries, but it almost always lies within the U.S. Census Bureau's Midwest region, which includes the states of Minnesota, Wisconsin, Michigan, Illinois, and Indiana.
- The History of the Upper Midwest: An Overview
- USGS Upper Midwest Environmental Sciences Center Archived 2010-06-28 at the Wayback Machine
- U.S. Geological Survey's (USGS) Upper Midwest Mineral Resources Program