Wild Goose State Trail, open year round. www.dodgecounty.com This is a 34-mile county-operated trail skirting the western edge of the vast Horicon Marsh, from Fond du Lac to Clyman Junction. The Wild Goose Trail is the place to be if you love birds. Every autumn endless V-shaped formations of Canada geese traverse the sky. The vast expanse of Horicon Marsh is an annual stop for all sorts of migratory waterfowl. In summer trailside trees and brush teem with songbirds. For an interesting look at the history of Horicon Marsh, stop at the Marsh Haven Nature Center. You'll learn about the glacier that created the marsh, the wildlife that live here, the Native American tribes who loved it, the pioneers who drained it, and the conservationists who restored it. Get a fantastic "bird's eye view" of the marsh from the center's observation tower. Winter ATV trail 20 miles weather permitting, Dodge County Segment ONLY; call ahead for info. Donations accepted.