TM forum member AI1 found an article about a supercharger under construction in Worthington, Minnesota. http://kwoa.com/news/2013/11/14/tesla-supercharge-station-under-construction-worthington-first-state It is located in the parking lot of the Ground Round Grill, 1290 Ryan's Road, which is about a block from the Humiston Road exit from I-90. This is 127 miles from the supercharger under construction in Mitchell, SD. The article also mentions that a supercharger is planned for Albert Lea, MN.