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BOSTON
MammothMarch Boston
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After a sold out 2024 MammothMarch Boston, we are back for another adventure at Wompatuck State Park! Hike 20 miles through one of South Shore’s hidden attractions and explore everything the undeveloped and heavily wooded State Park with its 3,500 acres of trails, streams and ponds has to offer.
Located just 20 miles south of downtown Boston, MammothMarch makes for the picture-perfect weekend getaway. Don’t miss out on one of the nation’s biggest hiking events on National Trails Day 2025, June 7.
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Master the challenge and spend a beautiful and challenging day hiking 20 miles at a stretch. Getting your finisher medal, you will be exhausted, but proud and happy... as well as part of our amazing community of nature-lovers, hikers and MammothMarch addicts!
At a glance
​Date: Saturday, June 7, 2025
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Location (start/finish): Wompatuck State Park, 204 Union St, Hingham, MA 02043
Use the Park entrance and follow the signs to our main venue (incl. start/finish/parking) at the Park’s “South Field”.
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Distance: 20 miles in 8 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 their finisher medal and considered a winner!
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Starting time: You can choose from several time slots as early as 6:45 am with limited capacity when signing up. This ensures the most remote hiking experience as a maximum of 5 hikers will cross the starting line at the same time. The first ones will head out between 6:45 – 7:00 a.m. with the majority coming back in just about 8 hours. However, we will have our finish line open a little bit longer for the ones that need a bit more time – cut off time at either aid station will be sunset (meaning if you’re hiking at a pace that won’t let you finish before sunset, we will provide a shuttle service back to the venue).
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Parking: Complimentary parking will be available on site.
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Aid/refreshment stations: There are water stops and 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 and vary between each station, offering water, energy drinks, electrolytes, fruits, cereal/protein bars, sandwiches and more.
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Certificates: All finishers will receive their personalized certificate after crossing the finish line. For the ones who drop out, we will issue certificates stating the mileage covered.
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Finisher medal/wall of fame: For all participants finishing MammothMarch.
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Hiking Pass: MammothMarch Hiking Passes will be made available for all new participants. All participants from previous editions or different MammothMarch events should bring their Hiking Pass to collect their 2025 stamps on site.
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Merchandise: Our full 2025 merchandise collection will be available later in 2024.
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Route: The single-circuit loop covers 20 miles of all the beauty Wompatuck State Park has to offer. The final route will be made available around 2 weeks prior to the event. Check out our 2024 route right here.
Total elevation gain: Around 950 ft.
Terrain: A great mix of everything: Paved and unpaved hiking trails, dirt trails, gravel roads, forest floor.
What are you waiting for? Sign up here to enter the adventure of a lifetime.
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Please check out more details in our FAQ section or contact us contact@mammothmarch.com. ​​