Thank you for your responses! We listened and added the Wild Duluth 50k to the MUT Series this year. There will be more additions over the next year.
Links
USATF MUT Mountain/Ultra/Trail Sport Council USA National 100K Team American Trail Running Association (ATRA) Ultra Minnesota
Amazing RacerUltramarathoner Helen Lavin Makes the Most Grueling Endurance Sport Look Easy by Erin Peterson via Minnesota Monthly