This 34-mile rail trail skirts the western edge of the vast Horicon Marsh from Fond du Lac to Clyman Junction. The Horicon Marsh, a National Wildlife Refuge and State Wildlife Area, home to over 250 bird species, is world-famous for its numerous migrant waterfowl and endless V-shaped formations of Canada geese. Wildflowers, woodlots, wildlife, prairie remnants and fertile farm fields are common sites along the trail.

The trail runs from the southern trailhead at State Highway 60 in Clyman Junction to the city of Fond du Lac, while passing by several small communities with accommodations and services available year-round. Picnicking opportunities are available at parks and rest stops along the trail and camping is available at many nearby county parks.

Winter All-Terrain Vehicle (ATV) and Utility Terrain Vehicle (UTV) use are permitted on the main trail between Dec. 1 and March 31 in Dodge County only and only when conditions allow.