Wow - I'm not sure if we even have members up that way. I'm thinking the 2 hour drive over to Minneapolis may be your best bet. Have you been dx'd or are you looking for the cause of your symptoms?
I've had MS for 10+ years and would be happy to drive up to 24 hours to get to one. I've had a broad range of symptoms that may or may not be related to my Copaxone and would like to be evaluated somewhere else.
The Consortium of Multiple Sclerosis Centers lists one in Fargo called MeritCare NeuroScience, 700 1st Avenue South, phone 701-234-4036. That's the only one listed in SD, but you could look in the adjoining states, I'm sure.
Hope I copied that correctly.