Grandma's Marathon (Grandma's) is an annual road running race held each June in Duluth, Minnesota, in the United States. The course runs point-to-point from the city of Two Harbors on Scenic Route 61 and continues along Lake Superior into the city of Duluth. The finish is located in Canal Park, near Grandma's Restaurant, which is next to the highly visible Aerial Lift Bridge.[2] With over 7,000 finishers, it is one of the ten largest marathons in the United States.