MammothMarch is back at Harriman State Park!
We are excited to be back for our second edition of 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.
Our scenic and challenging 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 4, 2025.
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”.
Mastering our challenge, you will be exhausted, but proud and happy... as well as part of our amazing community of nature-lovers, hikers and MammothMarch addicts!
Secure your ticket now and take a look at what's included:
Please note that the route will be made available for download 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 of course adapt it to local conditions at short notice.
Contact information
- Event contact
- MammothMarch Event Team
- contact@mammothmarch.com
- Website
- Visit website
Registration fees
MammothMarch Hudson Valley
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Spend a beautiful day hiking and finish 20 miles in 8 hours
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$69.00
SUPER EARLY BIRD
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$79.00
EARLY BIRD
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Register for MammothMarch Hudson Valley$89.00
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$99.00
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$109.00
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