The Northwestern Trail is a short segment of railroad right-of-way located between the City of Ripon and the west county line. It is about two and one-half miles in length. The trail is part of the County snowmobile trail system. It is used for hiking, cycling and running. The rural section is used for snowmobiling. Fond du Lac County and the city signed a 25-year lease with WP & L in 1994 this trail.