Kettle Moraine State Forest – Mukwonago River Unit
Photo: Wisconsin DNR
The Mukwonago River Unit of the Kettle Moraine State Forest is in Waukesha and Walworth counties. The 970-acre, former Rainbow Springs property, is situated in the Mukwonago River watershed and is an area known for its outstanding resource waters, varied habitats and biological diversity. The forest is adjacent to Lulu Lake State Natural Area.
Quick answers
When is the best time to visit Kettle Moraine State Forest – Mukwonago River Unit?
It depends on what you came for. Fall color is best in October, cross-country skiing in January–February and snowshoeing in January–February.
What can you do at Kettle Moraine State Forest – Mukwonago River Unit in each season?
Winter (December–February): cross-country skiing and snowshoeing. Fall (September–November): fall color.
Do you need a state park sticker at Kettle Moraine State Forest – Mukwonago River Unit?
No. Kettle Moraine State Forest – Mukwonago River Unit doesn't require a vehicle sticker or a state trail pass.
What state parks and trails are near Kettle Moraine State Forest – Mukwonago River Unit?
The closest state properties, as the crow flies: Kettle Moraine State Forest – Southern Unit (6 mi), Kettle Moraine State Forest – Lapham Peak Unit (13 mi) and White River State Trail (15 mi).
Good for
- Snowshoeing
- Cross-country skiing
Best months
Visiting
- Admission: A vehicle admission sticker is not required at Mukwonago River.
- Hours: Open 6 a.m. to 11 p.m. year-round.
- Address: S103 W33599 County Rd O Mukwonago, WI 53149
- Phone: 262-594-6204
Nearby
- Kettle Moraine State Forest – Southern Unit (6 mi)
- Kettle Moraine State Forest – Lapham Peak Unit (13 mi)
- White River State Trail (15 mi)
- Big Foot Beach State Park (20 mi)
- Richard Bong State Recreation Area (21 mi)
Closures and alerts for Kettle Moraine State Forest – Mukwonago River Unit: updates · RSS · JSON Feed
Text and park details on this page come from the property's DNR pages, checked every Monday; last change October 24, 2026. Closures and notices load live. Check current conditions before you go.