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MammothMarch Hudson Valley

We are excited to have found a beautiful new home for our previous MammothMarch New Jersey: After three years at Allamuchy Mountain, we are thrilled to host MammothMarch Hudson Valley at Harriman State Park – the second-largest State Park in New York featuring 31 lakes, two beaches, public camping areas, miles of streams and scenic roads as well as scores of wildlife species & vistas.

The Hudson Valley is steeped in history, natural beauty, culture, and a burgeoning food and farmer’s market scene. No wonder why National Geographic Traveler named this region a “Top 20 Best of the World Destinations” and Lonely Planet describes the Hudson River Valley as “a real city break, with leafy drives & wineries”.

Our scenic 20-mile single-circuit hiking route starts and finishes at Lake Welch and leads along Long Path, Beech Trail, Arden Surebridge Trail and many more – all ready for you to conquer on October 5, 2024.

Website pic Hudson Valley.JPG

At a glance 
​Date: Saturday, October 5, 2024 

Location (start/finish): Harriman State Park – Lake Welch Beach, 800 Kanawauke Rd, Southfields, NY 10980 (venue and parking is located right at Lake Welch Beach)


Local Partners:

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!

Starting time: You can choose from several time slots as early as 7:00 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 7:00 – 7:15 a.m. with the majority coming back in just about 8 hours. However, we will have our finish line open for the ones that need a bit more time – cut off at either aid station is half an hour before sunset. 

Parking: Complimentary parking will be available on site 

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.

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.

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 2024 stamps on site. 

Merchandise: Our 2024 merchandise collection is available right here.

Route: The single-circuit loop covers 20 miles of all the beauty Harriman State Park has to offer, including trails such as the Long Path, Beech Trail, Red Cross Trail, Arden Surebridge Trail, Suffern Bear Mountain. The final route will be made available around 2 weeks prior to the event. 

Total elevation gain: Around 2,900 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. 

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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