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Saturday, June 3 | Kettle Moraine State Forest

The Ice Age Trail is calling your name, and we are thrilled to host our first MammothMarch edition in Wisconsin! Hike 20 miles in 8 hours or 30 miles in 12 hours along one of only 11 National Scenic Trails in the country.

Located less than an hour north of Milwaukee, we will call the Northern Kettle Moraine State Forest home for one day. Our single-circuit 20- & 30-mile hiking loops cover everything the 30,000 acres of rolling hills, lakes, and forests have to offer.

Mastering our challenge, you will be exhausted, but proud and happy... as well as part of our amazing community of nature-lovers, hikers and MammothMarch addicts!

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Time & Location

Saturday, June 3, 2023, 6:30 AM

Kettle Moraine State Forest (Northern Unit); GPS: Mauthe Lake Recreation Area, County Road GGG, Campbellsport, WI 53010

At a glance


Date: Saturday, June 3, 2023


Distance: 20 miles in 8 hours or 30 miles in 12 hours

There is no timekeeping, there are no failures, we only recognize the incredible courage it takes to rise to our challenge. Every participant completing the distance will be awarded with their finisher medal and considered a winner!


Starting time: Several starting slots available from 6:30 a.m (30-milers) and 7 am (20-milers). You can choose from specific time slots with limited capacity when signing up. This ensures the most remote hiking experience as a maximum of 5 participants cross the starting line at the same time. The majority will come back in just about 8 hours (20-miles) or 12 hours (30-miles). However, we will have our finish line open for the ones that need a bit more time.


Venue (start/finish):

Kettle Moraine State Forest (Northern Unit); GPS: Mauthe Lake Recreation Area, County Road GGG, Campbellsport, WI 53010.


Parking: Complimentary parking will be available on site


Aid/refreshment stations: There are 3-4 aid stations along the route (approximately positioned every 5-7 miles apart) providing toilets, food and drinks for all participants. These refreshments are included in the cost of your ticket. The refreshments will vary between refreshment stations, providing water, coffee, tea, isotonic drinks, fruits, cereal bars, etc.

Certificates: All finishers receive their personalized certificate after crossing the finish line. For the ones who drop out, we issue certificates stating the mileage covered.


Finisher medal/wall of fame: For all participants finishing MammothMarch.

Merchandise: Our 2023 merchandise collection can be viewed right here: Pre-orders are available until around three weeks before the event, but we will also have merchandise on site (while stocks last).


Route: The 20-miler is a single-circuit loop covering all the beauty the Northern Kettle Moraine State Forest has to offer with a great portion leading along the Ice Age Trail. Our 30-mile participants will finish the same 20-miles and head out for an extra 10 mile-loop, covering completely new terrain. The final routes will be made available around 2 weeks prior to the event.

Total elevation gain: Around 1,000 ft. (20-miler), around 1,400 ft. (30-miler)

Terrain: A great mix of everything - paved and unpaved hiking trails, dirt trails, gravel roads and forest floor.

What are you waiting for? Sign up here to enter the adventure of a lifetime.


Please check out more details in our FAQ section or contact us at

The route will be made available approximately 2 weeks prior to the event. Please note that the route is preliminary and may be adjusted due to weather issues, official directives and/or organizational matters. The route will be marked 1-2 days prior to event day. Should we notice parts of the route being inaccessible, extremely wet/muddy we will adapt it to local conditions at short notice.

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