3K Storage on Lake Minnewawa in McGregor, MN offers a safe secure place for self storage. Conveniently located on Goshawk Street on lake Minnewawa also near Horseshoe lake, Round lake and Big Sandy lake in Aitkin county, McGregor MN. We have a wide variety of unit sizes to accommodate your household goods all the way up to storing vehicles, boats and pontoons to campers, RV's and 5th wheel trailers. Month to month lease options or discounts for longer terms - Rent indoor storage Today!