Kettle Moraine Forest Glacial Ridge Technical Loop
Ice age terrain meets expert-level technical challenge
Wisconsin’s glacial legacy comes alive on this technical loop through the Kettle Moraine State Forest, where 10,000-year-old ice age formations create some of the state’s most challenging terrain. The route winds through deep kettles (circular depressions left by melting ice blocks), climbs steep moraine ridges, and threads between massive glacial erratics – house-sized boulders dropped by retreating ice sheets. The notorious Devil’s Staircase section demands careful line choice as you descend a 200-foot kettle with loose glacial till and exposed bedrock.
This is expert-level terrain requiring lockers, skid plates, and aggressive tires for the steep kettle ascents and root-choked forest sections. Wet seasons turn glacial clay into axle-deep gumbo that’ll test your winch skills. Late summer through early fall offers the best conditions when trails firm up and fall colors explode. No camping allowed in the state forest, but the nearby towns offer supplies. You’ll gain an appreciation for ice age geology and some of the most unique 4×4 terrain in the Midwest.
Trail Specs
| Difficulty | Expert |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Dirt, Mixed |
| Features | Remote, Scenic |
| Length (miles) | 18 mi / 29 km |
| Duration | Full day |
| Max elevation (ft) | 1320 ft |
| Best season | August-October |
| Minimum vehicle | Built 4WD with lockers |
| Nearest town | Whitewater, Wisconsin |
| Land manager | Wisconsin DNR |
| Permit required | Yes |
| Cell service | Spotty |
| Water crossings | No |
| Dispersed camping | No |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
No recent condition reports. Be the first to post one.
Log in to post a condition report.
Frequently asked questions
Do I really need lockers for this trail or can a stock Jeep Wrangler handle it?
You absolutely need lockers - this is expert-level terrain with steep glacial drops, loose rock faces, and off-camber sections that will test even built rigs. A stock Wrangler will get stuck or damaged.
Why is August-October the best season and what happens if I go earlier?
Spring and early summer bring mud season that makes the technical sections nearly impossible and tears up the trail. Fall offers stable conditions with the glacial terrain at its most manageable.
What permits do I need from Wisconsin DNR and how much do they cost?
You need a Wisconsin State Park vehicle admission sticker ($28 annual or $8 daily) plus a special use permit for the technical loop areas. Contact the Southern Unit office for current permit requirements.
What's the hardest obstacle on this loop?
The glacial ridge descent about 12 miles in - it's a steep, loose rock face with deep ruts that requires precise line choice and momentum management. Many rigs need a winch or recovery here.
How's cell service for emergencies and should I bring a satellite communicator?
Cell service is spotty to non-existent in the deep forest sections, especially in the glacial valleys. Bring a satellite communicator or InReach - this remote terrain can leave you stranded for hours.