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Ice Age Trail: Greenbush Segment
08:25
31.8km
290m
Hiking
If you're seeking a substantial day hike that truly immerses you in Wisconsin's glacial past, the Ice Age Trail: Greenbush Segment delivers. This difficult 19.7-mile (31.8 km) hiking route, with its 950 feet (289 metres) of elevation gain, guides you through a landscape shaped by ancient ice, featuring prominent ridges and deep kettles. You'll navigate rugged, rocky, and rolling terrain, passing through diverse pine and hardwood forests that offer stunning fall colors, especially around the notable Greenbush Kettle.
Accessing the Greenbush Segment is convenient, with multiple parking areas available along the trail. While the route is well-marked, always pay attention to the yellow blazes to avoid straying onto cross-trails. Given the estimated 8 hours and 24 minutes duration, it's wise to start early, carry ample water, and be prepared for potentially muddy or slippery conditions after rain. This segment is a popular choice for those ready for a challenging and scenic outing.
This segment is celebrated as one of the oldest and most epic sections of the Ice Age National Scenic Trail, a testament to Wisconsin's unique glacial features. Beyond the main trail, you'll find amenities like a backpacking shelter, water pumps, and picnic areas, making it suitable for longer excursions. A side trail also offers a historical detour to the Old Wade House, adding a cultural layer to your outdoor adventure.
Last updated: June 9, 2026
Waypoints
Start point
Parking
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20.9 km
Purple trail
Highlight • Trail
Tip by
31.8 km
End point
Way Types & Surfaces
Way Types
25.3 km
6.02 km
414 m
< 100 m
Surfaces
25.6 km
4.68 km
1.13 km
330 m
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Elevation
Highest point (360 m)
Lowest point (290 m)
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Weather
Powered by Foreca
Today
Thursday 9 July
24°C
17°C
83 %
Additional weather tips
Max wind speed: 12.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
What is the terrain like on the Ice Age Trail: Greenbush Segment?
This segment is known for its rugged, rocky, and rolling terrain, shaped by ancient glaciers. You'll encounter numerous hills, winding around large kettles and moraines. The trail surface can be uneven and at times slippery, passing through hardwood forests, managed forests, and pine plantations.
How long is this segment of the Ice Age Trail and how difficult is it?
The Greenbush Segment itself is approximately 8.4 to 8.8 miles long. It's generally considered a moderate to difficult hike due to its many hills and uneven trail conditions. Be prepared for significant ascents and descents.
Where can I park to access the Greenbush Segment?
Multiple parking lots are available along the segment. You'll find convenient access points to start your hike.
Are dogs allowed on the trail?
Yes, dogs are generally allowed on the Ice Age Trail. However, always ensure they are kept on a leash and that you clean up after them to preserve the natural environment for everyone.
Do I need a permit or is there an entrance fee for the Kettle Moraine State Forest?
While there isn't a specific permit required for hiking the Ice Age Trail itself, a vehicle admission sticker is required for entry into Wisconsin State Parks and Forests, including the Northern Kettle Moraine State Forest where this segment is located. You can find more information on fees and permits on the Wisconsin DNR website.
What is the best time of year to hike this trail?
Autumn is particularly vibrant, with maples displaying beautiful shades of red and gold, making it a popular time to visit. Spring and early summer also offer pleasant hiking conditions before the peak heat. Winter hiking is possible, but be prepared for snow and ice.
What notable features or landmarks can I see along the route?
This segment is celebrated for its distinctive glacial topography, including the impressive Greenbush Kettle, one of the largest along the entire Ice Age Trail. You'll also pass through varied forest types. A side trail provides access to the historic Old Wade House Museum. Part of the route also follows the Purple trail.
Are there any facilities like water or restrooms available?
Yes, amenities along the segment include multiple parking lots, picnic areas, water pumps, and vault toilets. There are also backpacking shelters, such as Shelter #5, for those planning an overnight trip.
Does this trail connect with other paths?
Yes, the route primarily follows the IAT - Greenbush Segment. It also intersects with sections of the Purple Trail, Red Loop, Old Plank Road Trail, and the IAT - Greenbush-LaBudde Creek connection.
Is it possible to camp along the Greenbush Segment?
Yes, backpacking shelters like Shelter #5 are available for groups of hikers and tent campers. These provide options for overnight stays directly on the trail.
What should I know about navigating the trail?
The segment is well-blazed with yellow markers. However, due to intersecting cross-trails, it's important to remain attentive to the blazes to stay on the correct path. Carrying a map or using a GPS device is always recommended.
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