Sehgahunda Trail Marathon

Event overview

The Sehgahunda Trail Marathon, Marathon Relay and Vale of Three Falls take place May 16-17, 2026 at Letchworth State Park in Portageville, NY. The weekend includes a 26.3-mile trail marathon, 2-person and 4-person relays, the Sehgahunda 72 (completion of the marathon plus all three Vale of Three Falls races), and three shorter road races on the following day. Race entries include an event shirt and post-race food and drinks. Solo marathon finishers receive a handmade arrowhead medal; Sehgahunda 72 finishers receive a special plaque. Age minimums are stated for some events.

• 26.3 miles - Trail Marathon
• 2-person - Marathon Relay
• 4-person - Marathon Relay
• 72 km - Sehgahunda 72 (all four races)
• 5K - Lower Falls
• 10K - Middle Falls
• 15K - Upper Falls

Course and logistics

The trail marathon starts at the Mount Morris Dam Visitor Center and finishes at the Parade Grounds in Portageville. The trail marathon is described as highly technical with between 3,000 and 4,000 feet of climbing, many rocks, roots, gullies, and 7-8 check points or aid stations. Marathon participants are required to carry personal hydration; both days use cup-free aid stations. Relay leg distances are listed as 6.1, 9.3, 6.5, and 4.4 miles. The Vale of Three Falls races use out-and-back routes on a seasonal gravel/service road with stone, gravel, or broken asphalt and a noted hill; aid station counts are 1 for the 5K, 3 for the 10K, and 5 for the 15K. Parking is at the Parade Grounds and paid shuttle buses from the finish to the start are available for day one. Registration and packet pickup deadlines and locations are published by the organizers. Visit the organization's website for the most recent information.