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Upstate New York

MammothMarch is back in Upstate New York – and sold out again!

To enter our 2024 Upstate New York waiting list, check out this link. We will notify you in case additional tickets become available (first come, first served) and keep you posted on future editions.

We are beyond excited to have secured Letchworth State Park, renowned as the “Grand Canyon of the East”, for a second straight year. Hiking 20 miles in 8 hours you will conquer one of the most scenic areas in the Eastern US.

Our single-circuit hiking route leads along the Genesee River, through lush forests, and features spectacular waterfall and gorge views.

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 2024 calendar.

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At a glance

Date: Saturday, August 10, 2024, 6:45 am

Location & venue (start/finish): Castile Entrance / Letchworth State Park, 6787 Denton Corners Rd, Genesee Falls, NY 14427

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 6:45 a.m. 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 6:45 – 7:00 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.

Parking: Complimentary parking will be available on-site; all other Park fees are already included in your ticket as well.

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 everything Letchworth State Park has to offer, including the famous and scenic waterfall views! The final route will be made available around 2 weeks prior to the event. Check out our 2023 route right here:

Total elevation gain: Around 2,300 ft.

Terrain: A great mix of everything: Paved and unpaved hiking trails, dirt trails, gravel roads, forest floor

What are you waiting for? Click here to sign up for the adventure of a lifetime.


Please check out more details in our FAQ section or send us an e-mail at

The route will be made available for download, including GPS coordinates, 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 or extremely wet/muddy, we will, of course, adapt it to local conditions at short notice.

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