Wisconsin Statutes Vehicles (Ch. 340 to 351) § 350.03. Right-of-way

(a) The operator of a snowmobile on a privately owned raceway facility.

(b) The operator of a snowmobile in a sanctioned race or derby on public land, a highway or a snowmobile trail if the sponsor of the sanctioned race or derby marks the race or derby route or track to warn spectators from entering the route or track. In this paragraph, “public land” does not include the frozen surface of public waters.