MammothMarch Boston

JUN
5
2027
A 20-mile single-loop hike at Wompatuck State Park on June 5, 2027, with aid stations, finisher medal, certificate and about 950 ft of elevation gain.
Sat 5 Jun 2027
20 miles

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MammothMarch Boston 2027

MammothMarch Boston takes place on June 5, 2027 at Wompatuck State Park, 204 Union St, Hingham, MA, with the event venue at the park's South Field. The main route is a single-circuit loop that covers 20 miles and lists a total elevation gain of about 950 ft.

The course uses a mix of paved and unpaved hiking trails, dirt trails, gravel roads and forest floor. Aid and refreshment stations are placed approximately every 5–7 miles and provide toilets, food and drinks; typical provisions include water, energy drinks, electrolytes, fruit, cereal or protein bars and peanut-butter-and-jelly sandwiches. There is no timekeeping; the event notes cut-off times at aid stations for safety.

Complimentary parking is available on site. All participants who complete the distance receive a finisher medal and a personalized certificate; participants who stop early receive a certificate stating the mileage covered. MammothMarch Hiking Passes and stamps are handled on site for returning participants, and new passes will be available for first-time participants.

Event merchandise is offered through the event store on Raceroster and the official MammothMarch online shop; items ordered via the event store are available for pick up on event day, while purchases from the official shop are shipped. The final route map will be published about two weeks before the event. Lodging details will be provided later. Visit the organization's website for the most recent information.

20 mi
20-Mile Hiking Adventure
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