Kettle Moraine State Forest - Northern Unit
Single-track mountain bike trails are maintained at the Greenbush recreation area (9 miles) and New Fane recreation area (5.5 miles). A state trail pass is required for all bike riders age 16 and over on these trails. The 6.5-mile Lake to Lake Trail connects Mauthe Lake and Long Lake recreation areas and is open to both bicyclists and hikers.
To protect the tread of the single-track trails, riders are asked to not use the bike trails while it is raining or within four to six hours after the rain has stopped.
Greenbush trail system
On Kettle Moraine Drive, 2.5 miles north of State Highway 67, the Greenbush recreation area has two trail systems: four loops of challenging mountain bike trails totaling 9 miles, interwoven with five loops of hiking trails totaling 13.5 miles. Hikers and off-road mountain bikers share this multiple-use trail system in season. For safety reasons, these trails are user-specific; hiking is not allowed on the bike trails and biking is not allowed on the hiking trails. A state trail pass is required.
In winter, the hiking trails at Greenbush are machine-groomed for cross-country skiing. Pets, hiking, snowshoeing and biking are not allowed on the ski trails. A heated picnic shelter, picnic tables, grill, drinking water and vault toilets are near the trailhead. There is also access to the Ice Age Trail. Greenbush trail system [PDF].
Lake to Lake bike trail
This 6.5-mile limestone surfaced trail connects the Mauthe Lake and Long Lake recreation areas and passes by the village of Dundee. This gentle trail winds through hardwood forests, prairies, conifer plantations and lowland swamps. Lake to Lake Bike Trail [PDF].
New Fane trail system
On County Line Road, 1.5 miles east of Kettle Moraine Drive, the New Fane area has two trail systems: four loops of moderately-challenging mountain bike trails totaling 5.5 miles, interwoven with four loops of hiking trails totaling 7.7 miles. A short connector trail allows hikers access to the Ice Age Trail (bikes are not allowed on the connector trail). Hikers and off-road mountain bikers share this multiple-use trail system in season. For safety reasons, these trails are user-specific; hiking is not allowed on the bike trails and biking is not allowed on the hiking trails.
An open-air reservable shelter is located near the trailhead and drinking water and vault toilets are available year-round. A state trail pass is required. New Fane trail system [PDF].