Old Plank Road Trail (Wisconsin)

The Old Plank Road Trail is a 37.6-mile (60.5 km) shared-use path in Fond du Lac County and Sheboygan County in Wisconsin. It runs for approximately 21 miles (34 km) in Sheboygan County before entering Fond du Lac County. Outside the Sheboygan trailhead that starts with a tunnel beneath Interstate 43, the trail's entire length is along the right of way of Wisconsin Highway 23 (WIS 23), with fencing preventing access to the highway outside of intersection otherwise.