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Sunday, October 1, 2023 | The Fields at Waterloo

MammothMarch New Jersey is back for its third edition! Allamuchy Mountain State Park will once more feature all the beauty North New Jersey has to offer. Hike 20 or even 30 scenic miles through Allamuchy Mountain State Park, and along beautiful trails and lakes, such as Sussex Branch Trail and Cranberry Lake.

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Time & Location

Oct 1, 7:00 AM

The Fields at Waterloo, 2 Kinney Rd, Hackettstown, NJ 07840

Local Partners

At a glance


Date: Sunday, October 1, 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 the challenge and every participant completing the distance will be awarded with their finisher medal and considered a winner!


Starting time: Several starting slots available from 7 a.m.
We have implemented time slots with limited capacity that you can choose from when signing up. This ensures that a maximum of 5 participants people will cross the starting line at the same time. The first hikers will start as early as 7 a.m. with the majority coming back in just under 8 hours (20 mi.) or 12 hours (30 mi.). However, we will have our finish line open for the ones that need a bit more time.


Venue (start/finish): The Fields at Waterloo, 2 Kinney Rd, Hackettstown, NJ 07840


Parking: Adequate parking will be available free of charge

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

Certificates: All finishers will receive their personalized certificate and medal after crossing the finish line. A certificate – stating the individual mileage reached – can also be collected for those not completing the total distance.


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


Hiking Pass: MammothMarch Hiking Passes will be made available for all new participants. All  participants from a previous edition or different MammothMarch events should bring their Hiking Pass to collect their 2023 stamps on site.

Merchandise: Our full 2023 merchandise collection will be launched in the first months of 2023. Stay tuned!

Route: The single-circuit loops cover 20 or 30 miles along beautiful trails, lakes and remote parks. Take a look at our 2022 routes right here: 20-miler, 30-miler. Please note that this only provides a rough overview, and our final 2023 routes will be revealed shortly before the event.

Total elevation gain: Around 2,200 ft. (20-miler), 3,300 ft. (30-miler)

Terrain: A challenging mix of mainly unpaved hiking trails, dirt trails, forest floor, gravel paths.

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

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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