Glen Ullin MX Park Visit Website (701) 348-3683 4114 66th Ave , Glen Ullin, ND 58631 [email protected] Track for MX bikes. Annual sanctioned MX raced held in August each year. Free and open to the public anytime except during race weekend. Come on out and ride for the day, MX racers love to come and ride this track. Locate 46.816491, -101.844081 Glen Ullin MX Park Open in MapsOpen in Maps