MammothMarch is back at Letchworth State Park!
We are beyond excited to bring MammothMarch back to Letchworth State Park, renowned as the “Grand Canyon of the East”. After three sold-out editions in a row, MammothMarch Upstate New York takes place on August 8, 2026. Along our 20-mile hiking route, you will conquer one of the most scenic areas in the Eastern US.
Our single-circuit loop leads along the Genesee River, through lush forests, features spectacular waterfall and gorge views, and has quickly become a fan favorite among our nationwide hiking community.
Several times voted as “Best Park in the United States”, Letchworth is located just an hour east of Buffalo/south of Rochester and will once again be one of the most scenically magnificent MammothMarches in our 2026 calendar. Hurry up as we expect tickets to go fast.
Master the challenge and spend a beautiful 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!
Signing up for the first time? Take a look at past events and what our participants say: https://www.mammothmarch.com/reviews
Secure your ticket now and take a look at what's included:

Please note that all prices are INCLUSIVE of mandatory charges, items, and fees.
Registration fees
Prices are inclusive of mandatory charges, items, and fees
MammothMarch Upstate New York
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Spend a beautiful day hiking and finish 20 miles in 8 hours
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$62.94
SUPER EARLY BIRD
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$73.44
EARLY BIRD
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$83.94
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Register for MammothMarch Upstate New York$94.44
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$104.94
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$115.44
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Contact information
- Event contact
- MammothMarch Event Team
- Website
- Visit website