Grand Casino Mille Lacs Hotel Meeting Rooms & Events Meeting Capacity: 2 meeting rooms holding 1,864 peopleMeeting Space: 16,400 sq ft Grand Casino Mille Lacs Hotel Business Services A-V EquipmentCopier FaxMeeting Room Internet Access (Wireless) Grand Ballroom 1 Meeting RoomPortable Walls Available: NoSize: 14,000 sq ftGrand Ballroom 2 Meeting RoomPortable Walls Available: NoSize: 2,400 sq ft 777 Grand AveOnamia, MN 56359View Large Map Phone: +1 800-468-3517Toll Free: +800-626-5825 Hotel E-mailHotel Website Commission Rooms Rates - 494 $89-$89 (USD) Hoteliers! Is your information accurate? Update Here