MammothMarch Boston

JUN
5
2027
A 20 miles single circuit hike in Wompatuck State Park on June 5, 2027 with aid stations, onsite parking, finisher medal and personalized certificates.
Sat 5 Jun 2027
20 miles

Always double-check with the organizer's website! This page may contain affiliate links.

MammothMarch Boston 2027

MammothMarch Boston takes place on June 5, 2027 at Wompatuck State Park in Hingham, Massachusetts. The event is a single circuit of approximately 20 miles through the park, with a total elevation gain around 950 ft. The route uses a mix of paved and unpaved hiking trails, dirt trails, gravel roads and forest floor. The final route will be published about two weeks before the event.

Organizers do not use formal timekeeping; every participant who completes the distance receives a finisher medal and a personalized certificate. Participants who stop before the finish are issued certificates stating the mileage covered. Staggered small-group starts are used so only a few hikers cross the start line together to maintain a more remote hiking experience.

Support along the route includes water stops and aid stations positioned approximately every 5 to 7 miles. Stations provide toilets, food and drinks such as water, energy drinks, electrolytes, fruit, bars and sandwiches; these refreshments are included with registration. Complimentary parking is available at the park and the start and finish are located at the park’s South Field.

A MammothMarch Hiking Pass will be available for new participants and returning participants can collect 2027 stamps on their existing passes. Merchandise can be ordered through the event store for pickup on event day or through the official online shop for shipping. Visit the organization's website for the most recent information.

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